| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Christian Lamparter | 578 | 57.00% | 16 | 84.21% |
| James Hsiao | 411 | 40.53% | 1 | 5.26% |
| Herbert Xu | 24 | 2.37% | 1 | 5.26% |
| Grant C. Likely | 1 | 0.10% | 1 | 5.26% |
| Total | 1014 | 19 |
/** * AMCC SoC PPC4xx Crypto Driver * * Copyright (c) 2008 Applied Micro Circuits Corporation. * All rights reserved. James Hsiao <jhsiao@amcc.com> * * 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. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * This is the header file for AMCC Crypto offload Linux device driver for * use with Linux CryptoAPI. */ #ifndef __CRYPTO4XX_CORE_H__ #define __CRYPTO4XX_CORE_H__ #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" #define PPC460SX_SDR0_SRST 0x201 #define PPC405EX_SDR0_SRST 0x200 #define PPC460EX_SDR0_SRST 0x201 #define PPC460EX_CE_RESET 0x08000000 #define PPC460SX_CE_RESET 0x20000000 #define PPC405EX_CE_RESET 0x00000008 #define CRYPTO4XX_CRYPTO_PRIORITY 300 #define PPC4XX_NUM_PD 256 #define PPC4XX_LAST_PD (PPC4XX_NUM_PD - 1) #define PPC4XX_NUM_GD 1024 #define PPC4XX_LAST_GD (PPC4XX_NUM_GD - 1) #define PPC4XX_NUM_SD 256 #define PPC4XX_LAST_SD (PPC4XX_NUM_SD - 1) #define PPC4XX_SD_BUFFER_SIZE 2048 #define PD_ENTRY_BUSY BIT(1) #define PD_ENTRY_INUSE BIT(0) #define PD_ENTRY_FREE 0 #define ERING_WAS_FULL 0xffffffff struct crypto4xx_device; union shadow_sa_buf { struct dynamic_sa_ctl sa; /* alloc 256 bytes which is enough for any kind of dynamic sa */ u8 buf[256]; } __packed; struct pd_uinfo { struct crypto4xx_device *dev; u32 state; u32 using_sd; u32 first_gd; /* first gather discriptor used by this packet */ u32 num_gd; /* number of gather discriptor used by this packet */ u32 first_sd; /* first scatter discriptor used by this packet */ u32 num_sd; /* number of scatter discriptors used by this packet */ struct dynamic_sa_ctl *sa_va; /* shadow sa */ struct sa_state_record *sr_va; /* state record for shadow sa */ u32 sr_pa; struct scatterlist *dest_va; struct crypto_async_request *async_req; /* base crypto request for this packet */ }; struct crypto4xx_device { struct crypto4xx_core_device *core_dev; void __iomem *ce_base; void __iomem *trng_base; struct ce_pd *pdr; /* base address of packet descriptor ring */ dma_addr_t pdr_pa; /* physical address of pdr_base_register */ struct ce_gd *gdr; /* gather descriptor ring */ dma_addr_t gdr_pa; /* physical address of gdr_base_register */ struct ce_sd *sdr; /* scatter descriptor ring */ dma_addr_t sdr_pa; /* physical address of sdr_base_register */ void *scatter_buffer_va; dma_addr_t scatter_buffer_pa; union shadow_sa_buf *shadow_sa_pool; dma_addr_t shadow_sa_pool_pa; struct sa_state_record *shadow_sr_pool; dma_addr_t shadow_sr_pool_pa; u32 pdr_tail; u32 pdr_head; u32 gdr_tail; u32 gdr_head; u32 sdr_tail; u32 sdr_head; struct pd_uinfo *pdr_uinfo; struct list_head alg_list; /* List of algorithm supported by this device */ struct ratelimit_state aead_ratelimit; bool is_revb; }; struct crypto4xx_core_device { struct device *device; struct platform_device *ofdev; struct crypto4xx_device *dev; struct hwrng *trng; u32 int_status; u32 irq; struct tasklet_struct tasklet; spinlock_t lock; }; struct crypto4xx_ctx { struct crypto4xx_device *dev; struct dynamic_sa_ctl *sa_in; struct dynamic_sa_ctl *sa_out; __le32 iv_nonce; u32 sa_len; union { struct crypto_skcipher *cipher; struct crypto_aead *aead; } sw_cipher; }; struct crypto4xx_aead_reqctx { struct scatterlist dst[2]; }; struct crypto4xx_alg_common { u32 type; union { struct skcipher_alg cipher; struct ahash_alg hash; struct aead_alg aead; } u; }; struct crypto4xx_alg { struct list_head entry; struct crypto4xx_alg_common alg; struct crypto4xx_device *dev; }; int crypto4xx_alloc_sa(struct crypto4xx_ctx *ctx, u32 size); void crypto4xx_free_sa(struct crypto4xx_ctx *ctx); void crypto4xx_free_ctx(struct crypto4xx_ctx *ctx); int crypto4xx_build_pd(struct crypto_async_request *req, struct crypto4xx_ctx *ctx, struct scatterlist *src, struct scatterlist *dst, const unsigned int datalen, const __le32 *iv, const u32 iv_len, const struct dynamic_sa_ctl *sa, const unsigned int sa_len, const unsigned int assoclen, struct scatterlist *dst_tmp); int crypto4xx_setkey_aes_cbc(struct crypto_skcipher *cipher, const u8 *key, unsigned int keylen); int crypto4xx_setkey_aes_cfb(struct crypto_skcipher *cipher, const u8 *key, unsigned int keylen); int crypto4xx_setkey_aes_ctr(struct crypto_skcipher *cipher, const u8 *key, unsigned int keylen); int crypto4xx_setkey_aes_ecb(struct crypto_skcipher *cipher, const u8 *key, unsigned int keylen); int crypto4xx_setkey_aes_ofb(struct crypto_skcipher *cipher, const u8 *key, unsigned int keylen); int crypto4xx_setkey_rfc3686(struct crypto_skcipher *cipher, const u8 *key, unsigned int keylen); int crypto4xx_encrypt_ctr(struct skcipher_request *req); int crypto4xx_decrypt_ctr(struct skcipher_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); int crypto4xx_hash_update(struct ahash_request *req); int crypto4xx_hash_init(struct ahash_request *req); /** * Note: Only use this function to copy items that is word aligned. */ static inline void crypto4xx_memcpy_swab32(u32 *dst, const void *buf, size_t len) { for (; len >= 4; buf += 4, len -= 4) *dst++ = __swab32p((u32 *) buf); if (len) { const u8 *tmp = (u8 *)buf; switch (len) { case 3: *dst = (tmp[2] << 16) | (tmp[1] << 8) | tmp[0]; break; case 2: *dst = (tmp[1] << 8) | tmp[0]; break; case 1: *dst = tmp[0]; break; default: break; } } } static inline void crypto4xx_memcpy_from_le32(u32 *dst, const void *buf, size_t len) { crypto4xx_memcpy_swab32(dst, buf, len); } static inline void crypto4xx_memcpy_to_le32(__le32 *dst, const void *buf, size_t len) { crypto4xx_memcpy_swab32((u32 *)dst, buf, len); } int crypto4xx_setauthsize_aead(struct crypto_aead *ciper, unsigned int authsize); int crypto4xx_setkey_aes_ccm(struct crypto_aead *cipher, const u8 *key, unsigned int keylen); int crypto4xx_encrypt_aes_ccm(struct aead_request *req); int crypto4xx_decrypt_aes_ccm(struct aead_request *req); int crypto4xx_setkey_aes_gcm(struct crypto_aead *cipher, const u8 *key, unsigned int keylen); int crypto4xx_encrypt_aes_gcm(struct aead_request *req); int crypto4xx_decrypt_aes_gcm(struct aead_request *req); #endif
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