354 lines
10 KiB
C
354 lines
10 KiB
C
|
/*
|
||
|
|
* This file is part of the Chelsio T6 Crypto driver for Linux.
|
||
|
|
*
|
||
|
|
* Copyright (c) 2003-2016 Chelsio Communications, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* This software is available to you under a choice of one of two
|
||
|
|
* licenses. You may choose to be licensed under the terms of the GNU
|
||
|
|
* General Public License (GPL) Version 2, available from the file
|
||
|
|
* COPYING in the main directory of this source tree, or the
|
||
|
|
* OpenIB.org BSD license below:
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or
|
||
|
|
* without modification, are permitted provided that the following
|
||
|
|
* conditions are met:
|
||
|
|
*
|
||
|
|
* - Redistributions of source code must retain the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer.
|
||
|
|
*
|
||
|
|
* - Redistributions in binary form must reproduce the above
|
||
|
|
* copyright notice, this list of conditions and the following
|
||
|
|
* disclaimer in the documentation and/or other materials
|
||
|
|
* provided with the distribution.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
||
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
||
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
||
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
||
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
||
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
||
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
||
|
|
* SOFTWARE.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef __CHCR_CRYPTO_H__
|
||
|
|
#define __CHCR_CRYPTO_H__
|
||
|
|
|
||
|
|
#define GHASH_BLOCK_SIZE 16
|
||
|
|
#define GHASH_DIGEST_SIZE 16
|
||
|
|
|
||
|
|
#define CCM_B0_SIZE 16
|
||
|
|
#define CCM_AAD_FIELD_SIZE 2
|
||
|
|
// 511 - 16(For IV)
|
||
|
|
#define T6_MAX_AAD_SIZE 495
|
||
|
|
|
||
|
|
|
||
|
|
/* Define following if h/w is not dropping the AAD and IV data before
|
||
|
|
* giving the processed data
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define CHCR_CRA_PRIORITY 500
|
||
|
|
#define CHCR_AEAD_PRIORITY 6000
|
||
|
|
#define CHCR_AES_MAX_KEY_LEN (2 * (AES_MAX_KEY_SIZE)) /* consider xts */
|
||
|
|
#define CHCR_MAX_CRYPTO_IV_LEN 16 /* AES IV len */
|
||
|
|
|
||
|
|
#define CHCR_MAX_AUTHENC_AES_KEY_LEN 32 /* max aes key length*/
|
||
|
|
#define CHCR_MAX_AUTHENC_SHA_KEY_LEN 128 /* max sha key length*/
|
||
|
|
|
||
|
|
#define CHCR_GIVENCRYPT_OP 2
|
||
|
|
/* CPL/SCMD parameters */
|
||
|
|
|
||
|
|
#define CHCR_ENCRYPT_OP 0
|
||
|
|
#define CHCR_DECRYPT_OP 1
|
||
|
|
|
||
|
|
#define CHCR_SCMD_SEQ_NO_CTRL_32BIT 1
|
||
|
|
#define CHCR_SCMD_SEQ_NO_CTRL_48BIT 2
|
||
|
|
#define CHCR_SCMD_SEQ_NO_CTRL_64BIT 3
|
||
|
|
|
||
|
|
#define CHCR_SCMD_PROTO_VERSION_GENERIC 4
|
||
|
|
|
||
|
|
#define CHCR_SCMD_AUTH_CTRL_AUTH_CIPHER 0
|
||
|
|
#define CHCR_SCMD_AUTH_CTRL_CIPHER_AUTH 1
|
||
|
|
|
||
|
|
#define CHCR_SCMD_CIPHER_MODE_NOP 0
|
||
|
|
#define CHCR_SCMD_CIPHER_MODE_AES_CBC 1
|
||
|
|
#define CHCR_SCMD_CIPHER_MODE_AES_GCM 2
|
||
|
|
#define CHCR_SCMD_CIPHER_MODE_AES_CTR 3
|
||
|
|
#define CHCR_SCMD_CIPHER_MODE_GENERIC_AES 4
|
||
|
|
#define CHCR_SCMD_CIPHER_MODE_AES_XTS 6
|
||
|
|
#define CHCR_SCMD_CIPHER_MODE_AES_CCM 7
|
||
|
|
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_NOP 0
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_SHA1 1
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_SHA224 2
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_SHA256 3
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_GHASH 4
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_SHA512_224 5
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_SHA512_256 6
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_SHA512_384 7
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_SHA512_512 8
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_CBCMAC 9
|
||
|
|
#define CHCR_SCMD_AUTH_MODE_CMAC 10
|
||
|
|
|
||
|
|
#define CHCR_SCMD_HMAC_CTRL_NOP 0
|
||
|
|
#define CHCR_SCMD_HMAC_CTRL_NO_TRUNC 1
|
||
|
|
#define CHCR_SCMD_HMAC_CTRL_TRUNC_RFC4366 2
|
||
|
|
#define CHCR_SCMD_HMAC_CTRL_IPSEC_96BIT 3
|
||
|
|
#define CHCR_SCMD_HMAC_CTRL_PL1 4
|
||
|
|
#define CHCR_SCMD_HMAC_CTRL_PL2 5
|
||
|
|
#define CHCR_SCMD_HMAC_CTRL_PL3 6
|
||
|
|
#define CHCR_SCMD_HMAC_CTRL_DIV2 7
|
||
|
|
#define VERIFY_HW 0
|
||
|
|
#define VERIFY_SW 1
|
||
|
|
|
||
|
|
#define CHCR_SCMD_IVGEN_CTRL_HW 0
|
||
|
|
#define CHCR_SCMD_IVGEN_CTRL_SW 1
|
||
|
|
/* This are not really mac key size. They are intermediate values
|
||
|
|
* of sha engine and its size
|
||
|
|
*/
|
||
|
|
#define CHCR_KEYCTX_MAC_KEY_SIZE_128 0
|
||
|
|
#define CHCR_KEYCTX_MAC_KEY_SIZE_160 1
|
||
|
|
#define CHCR_KEYCTX_MAC_KEY_SIZE_192 2
|
||
|
|
#define CHCR_KEYCTX_MAC_KEY_SIZE_256 3
|
||
|
|
#define CHCR_KEYCTX_MAC_KEY_SIZE_512 4
|
||
|
|
#define CHCR_KEYCTX_CIPHER_KEY_SIZE_128 0
|
||
|
|
#define CHCR_KEYCTX_CIPHER_KEY_SIZE_192 1
|
||
|
|
#define CHCR_KEYCTX_CIPHER_KEY_SIZE_256 2
|
||
|
|
#define CHCR_KEYCTX_NO_KEY 15
|
||
|
|
|
||
|
|
#define CHCR_CPL_FW4_PLD_IV_OFFSET (5 * 64) /* bytes. flt #5 and #6 */
|
||
|
|
#define CHCR_CPL_FW4_PLD_HASH_RESULT_OFFSET (7 * 64) /* bytes. flt #7 */
|
||
|
|
#define CHCR_CPL_FW4_PLD_DATA_SIZE (4 * 64) /* bytes. flt #4 to #7 */
|
||
|
|
|
||
|
|
#define KEY_CONTEXT_HDR_SALT_AND_PAD 16
|
||
|
|
#define flits_to_bytes(x) (x * 8)
|
||
|
|
|
||
|
|
#define IV_NOP 0
|
||
|
|
#define IV_IMMEDIATE 1
|
||
|
|
#define IV_DSGL 2
|
||
|
|
|
||
|
|
#define AEAD_H_SIZE 16
|
||
|
|
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_MASK 0x0f000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_HASH_HMAC 0x01000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_AEAD_RFC4106 0x02000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_AEAD_GCM 0x03000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_CBC_SHA 0x04000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_AEAD_CCM 0x05000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_AEAD_RFC4309 0x06000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_CBC_NULL 0x07000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_CTR 0x08000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_CTR_RFC3686 0x09000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_XTS 0x0a000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_CBC 0x0b000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_CTR_SHA 0x0c000000
|
||
|
|
#define CRYPTO_ALG_SUB_TYPE_CTR_NULL 0x0d000000
|
||
|
|
#define CRYPTO_ALG_TYPE_HMAC (CRYPTO_ALG_TYPE_AHASH |\
|
||
|
|
CRYPTO_ALG_SUB_TYPE_HASH_HMAC)
|
||
|
|
|
||
|
|
#define MAX_SCRATCH_PAD_SIZE 32
|
||
|
|
|
||
|
|
#define CHCR_HASH_MAX_BLOCK_SIZE_64 64
|
||
|
|
#define CHCR_HASH_MAX_BLOCK_SIZE_128 128
|
||
|
|
#define CHCR_SRC_SG_SIZE (0x10000 - sizeof(int))
|
||
|
|
#define CHCR_DST_SG_SIZE 2048
|
||
|
|
|
||
|
|
static inline struct chcr_context *a_ctx(struct crypto_aead *tfm)
|
||
|
|
{
|
||
|
|
return crypto_aead_ctx(tfm);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct chcr_context *c_ctx(struct crypto_skcipher *tfm)
|
||
|
|
{
|
||
|
|
return crypto_skcipher_ctx(tfm);
|
||
|
|
}
|
||
|
|
|
||
|
|
static inline struct chcr_context *h_ctx(struct crypto_ahash *tfm)
|
||
|
|
{
|
||
|
|
return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
|
||
|
|
}
|
||
|
|
|
||
|
|
struct ablk_ctx {
|
||
|
|
struct crypto_skcipher *sw_cipher;
|
||
|
|
__be32 key_ctx_hdr;
|
||
|
|
unsigned int enckey_len;
|
||
|
|
unsigned char ciph_mode;
|
||
|
|
u8 key[CHCR_AES_MAX_KEY_LEN];
|
||
|
|
u8 nonce[4];
|
||
|
|
u8 rrkey[AES_MAX_KEY_SIZE];
|
||
|
|
};
|
||
|
|
struct chcr_aead_reqctx {
|
||
|
|
struct sk_buff *skb;
|
||
|
|
dma_addr_t iv_dma;
|
||
|
|
dma_addr_t b0_dma;
|
||
|
|
unsigned int b0_len;
|
||
|
|
unsigned int op;
|
||
|
|
u16 imm;
|
||
|
|
u16 verify;
|
||
|
|
u16 txqidx;
|
||
|
|
u16 rxqidx;
|
||
|
|
u8 iv[CHCR_MAX_CRYPTO_IV_LEN + MAX_SCRATCH_PAD_SIZE];
|
||
|
|
u8 *scratch_pad;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct ulptx_walk {
|
||
|
|
struct ulptx_sgl *sgl;
|
||
|
|
unsigned int nents;
|
||
|
|
unsigned int pair_idx;
|
||
|
|
unsigned int last_sg_len;
|
||
|
|
struct scatterlist *last_sg;
|
||
|
|
struct ulptx_sge_pair *pair;
|
||
|
|
|
||
|
|
};
|
||
|
|
|
||
|
|
struct dsgl_walk {
|
||
|
|
unsigned int nents;
|
||
|
|
unsigned int last_sg_len;
|
||
|
|
struct scatterlist *last_sg;
|
||
|
|
struct cpl_rx_phys_dsgl *dsgl;
|
||
|
|
struct phys_sge_pairs *to;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct chcr_gcm_ctx {
|
||
|
|
u8 ghash_h[AEAD_H_SIZE];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct chcr_authenc_ctx {
|
||
|
|
u8 dec_rrkey[AES_MAX_KEY_SIZE];
|
||
|
|
u8 h_iopad[2 * CHCR_HASH_MAX_DIGEST_SIZE];
|
||
|
|
unsigned char auth_mode;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct __aead_ctx {
|
||
|
|
union {
|
||
|
|
DECLARE_FLEX_ARRAY(struct chcr_gcm_ctx, gcm);
|
||
|
|
DECLARE_FLEX_ARRAY(struct chcr_authenc_ctx, authenc);
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
struct chcr_aead_ctx {
|
||
|
|
__be32 key_ctx_hdr;
|
||
|
|
unsigned int enckey_len;
|
||
|
|
struct crypto_aead *sw_cipher;
|
||
|
|
u8 salt[MAX_SALT];
|
||
|
|
u8 key[CHCR_AES_MAX_KEY_LEN];
|
||
|
|
u8 nonce[4];
|
||
|
|
u16 hmac_ctrl;
|
||
|
|
u16 mayverify;
|
||
|
|
struct __aead_ctx ctx[];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct hmac_ctx {
|
||
|
|
struct crypto_shash *base_hash;
|
||
|
|
u8 ipad[CHCR_HASH_MAX_BLOCK_SIZE_128];
|
||
|
|
u8 opad[CHCR_HASH_MAX_BLOCK_SIZE_128];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct __crypto_ctx {
|
||
|
|
union {
|
||
|
|
struct hmac_ctx hmacctx;
|
||
|
|
struct ablk_ctx ablkctx;
|
||
|
|
struct chcr_aead_ctx aeadctx;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
struct chcr_context {
|
||
|
|
struct chcr_dev *dev;
|
||
|
|
unsigned char rxq_perchan;
|
||
|
|
unsigned char txq_perchan;
|
||
|
|
unsigned int ntxq;
|
||
|
|
unsigned int nrxq;
|
||
|
|
struct completion cbc_aes_aio_done;
|
||
|
|
struct __crypto_ctx crypto_ctx[];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct chcr_hctx_per_wr {
|
||
|
|
struct scatterlist *srcsg;
|
||
|
|
struct sk_buff *skb;
|
||
|
|
dma_addr_t dma_addr;
|
||
|
|
u32 dma_len;
|
||
|
|
unsigned int src_ofst;
|
||
|
|
unsigned int processed;
|
||
|
|
u32 result;
|
||
|
|
u8 is_sg_map;
|
||
|
|
u8 imm;
|
||
|
|
/*Final callback called. Driver cannot rely on nbytes to decide
|
||
|
|
* final call
|
||
|
|
*/
|
||
|
|
u8 isfinal;
|
||
|
|
};
|
||
|
|
|
||
|
|
struct chcr_ahash_req_ctx {
|
||
|
|
struct chcr_hctx_per_wr hctx_wr;
|
||
|
|
u8 *reqbfr;
|
||
|
|
u8 *skbfr;
|
||
|
|
/* SKB which is being sent to the hardware for processing */
|
||
|
|
u64 data_len; /* Data len till time */
|
||
|
|
u16 txqidx;
|
||
|
|
u16 rxqidx;
|
||
|
|
u8 reqlen;
|
||
|
|
u8 partial_hash[CHCR_HASH_MAX_DIGEST_SIZE];
|
||
|
|
u8 bfr1[CHCR_HASH_MAX_BLOCK_SIZE_128];
|
||
|
|
u8 bfr2[CHCR_HASH_MAX_BLOCK_SIZE_128];
|
||
|
|
};
|
||
|
|
|
||
|
|
struct chcr_skcipher_req_ctx {
|
||
|
|
struct sk_buff *skb;
|
||
|
|
struct scatterlist *dstsg;
|
||
|
|
unsigned int processed;
|
||
|
|
unsigned int last_req_len;
|
||
|
|
unsigned int partial_req;
|
||
|
|
struct scatterlist *srcsg;
|
||
|
|
unsigned int src_ofst;
|
||
|
|
unsigned int dst_ofst;
|
||
|
|
unsigned int op;
|
||
|
|
u16 imm;
|
||
|
|
u8 iv[CHCR_MAX_CRYPTO_IV_LEN];
|
||
|
|
u8 init_iv[CHCR_MAX_CRYPTO_IV_LEN];
|
||
|
|
u16 txqidx;
|
||
|
|
u16 rxqidx;
|
||
|
|
struct skcipher_request fallback_req; // keep at the end
|
||
|
|
};
|
||
|
|
|
||
|
|
struct chcr_alg_template {
|
||
|
|
u32 type;
|
||
|
|
u32 is_registered;
|
||
|
|
union {
|
||
|
|
struct skcipher_alg skcipher;
|
||
|
|
struct ahash_alg hash;
|
||
|
|
struct aead_alg aead;
|
||
|
|
} alg;
|
||
|
|
};
|
||
|
|
|
||
|
|
typedef struct sk_buff *(*create_wr_t)(struct aead_request *req,
|
||
|
|
unsigned short qid,
|
||
|
|
int size);
|
||
|
|
|
||
|
|
void chcr_verify_tag(struct aead_request *req, u8 *input, int *err);
|
||
|
|
int chcr_aead_dma_map(struct device *dev, struct aead_request *req,
|
||
|
|
unsigned short op_type);
|
||
|
|
void chcr_aead_dma_unmap(struct device *dev, struct aead_request *req,
|
||
|
|
unsigned short op_type);
|
||
|
|
void chcr_add_aead_dst_ent(struct aead_request *req,
|
||
|
|
struct cpl_rx_phys_dsgl *phys_cpl,
|
||
|
|
unsigned short qid);
|
||
|
|
void chcr_add_aead_src_ent(struct aead_request *req, struct ulptx_sgl *ulptx);
|
||
|
|
void chcr_add_cipher_src_ent(struct skcipher_request *req,
|
||
|
|
void *ulptx,
|
||
|
|
struct cipher_wr_param *wrparam);
|
||
|
|
int chcr_cipher_dma_map(struct device *dev, struct skcipher_request *req);
|
||
|
|
void chcr_cipher_dma_unmap(struct device *dev, struct skcipher_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);
|
||
|
|
int sg_nents_len_skip(struct scatterlist *sg, u64 len, u64 skip);
|
||
|
|
void chcr_add_hash_src_ent(struct ahash_request *req, struct ulptx_sgl *ulptx,
|
||
|
|
struct hash_wr_param *param);
|
||
|
|
int chcr_hash_dma_map(struct device *dev, struct ahash_request *req);
|
||
|
|
void chcr_hash_dma_unmap(struct device *dev, struct ahash_request *req);
|
||
|
|
void chcr_aead_common_exit(struct aead_request *req);
|
||
|
|
#endif /* __CHCR_CRYPTO_H__ */
|