| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| J Keerthy | 810 | 97.59% | 3 | 42.86% |
| Peter Ujfalusi | 10 | 1.20% | 1 | 14.29% |
| Andrew F. Davis | 4 | 0.48% | 1 | 14.29% |
| Eric Biggers | 4 | 0.48% | 1 | 14.29% |
| Herbert Xu | 2 | 0.24% | 1 | 14.29% |
| Total | 830 | 7 |
/* SPDX-License-Identifier: GPL-2.0 */ /* * K3 SA2UL crypto accelerator driver * * Copyright (C) 2018-2020 Texas Instruments Incorporated - http://www.ti.com * * Authors: Keerthy * Vitaly Andrianov * Tero Kristo */ #ifndef _K3_SA2UL_ #define _K3_SA2UL_ #include <crypto/aes.h> #include <crypto/sha1.h> #include <crypto/sha2.h> #define SA_ENGINE_STATUS 0x0008 #define SA_ENGINE_ENABLE_CONTROL 0x1000 struct sa_tfm_ctx; /* * SA_ENGINE_ENABLE_CONTROL register bits */ #define SA_EEC_ENCSS_EN 0x00000001 #define SA_EEC_AUTHSS_EN 0x00000002 #define SA_EEC_TRNG_EN 0x00000008 #define SA_EEC_PKA_EN 0x00000010 #define SA_EEC_CTXCACH_EN 0x00000080 #define SA_EEC_CPPI_PORT_IN_EN 0x00000200 #define SA_EEC_CPPI_PORT_OUT_EN 0x00000800 /* * Encoding used to identify the typo of crypto operation * performed on the packet when the packet is returned * by SA */ #define SA_REQ_SUBTYPE_ENC 0x0001 #define SA_REQ_SUBTYPE_DEC 0x0002 #define SA_REQ_SUBTYPE_SHIFT 16 #define SA_REQ_SUBTYPE_MASK 0xffff /* Number of 32 bit words in EPIB */ #define SA_DMA_NUM_EPIB_WORDS 4 /* Number of 32 bit words in PS data */ #define SA_DMA_NUM_PS_WORDS 16 #define NKEY_SZ 3 #define MCI_SZ 27 /* * Maximum number of simultaeneous security contexts * supported by the driver */ #define SA_MAX_NUM_CTX 512 /* * Assumption: CTX size is multiple of 32 */ #define SA_CTX_SIZE_TO_DMA_SIZE(ctx_sz) \ ((ctx_sz) ? ((ctx_sz) / 32 - 1) : 0) #define SA_CTX_ENC_KEY_OFFSET 32 #define SA_CTX_ENC_AUX1_OFFSET 64 #define SA_CTX_ENC_AUX2_OFFSET 96 #define SA_CTX_ENC_AUX3_OFFSET 112 #define SA_CTX_ENC_AUX4_OFFSET 128 /* Next Engine Select code in CP_ACE */ #define SA_ENG_ID_EM1 2 /* Enc/Dec engine with AES/DEC core */ #define SA_ENG_ID_EM2 3 /* Encryption/Decryption enginefor pass 2 */ #define SA_ENG_ID_AM1 4 /* Auth. engine with SHA1/MD5/SHA2 core */ #define SA_ENG_ID_AM2 5 /* Authentication engine for pass 2 */ #define SA_ENG_ID_OUTPORT2 20 /* Egress module 2 */ /* * Command Label Definitions */ #define SA_CMDL_OFFSET_NESC 0 /* Next Engine Select Code */ #define SA_CMDL_OFFSET_LABEL_LEN 1 /* Engine Command Label Length */ /* 16-bit Length of Data to be processed */ #define SA_CMDL_OFFSET_DATA_LEN 2 #define SA_CMDL_OFFSET_DATA_OFFSET 4 /* Stat Data Offset */ #define SA_CMDL_OFFSET_OPTION_CTRL1 5 /* Option Control Byte 1 */ #define SA_CMDL_OFFSET_OPTION_CTRL2 6 /* Option Control Byte 2 */ #define SA_CMDL_OFFSET_OPTION_CTRL3 7 /* Option Control Byte 3 */ #define SA_CMDL_OFFSET_OPTION_BYTE 8 #define SA_CMDL_HEADER_SIZE_BYTES 8 #define SA_CMDL_OPTION_BYTES_MAX_SIZE 72 #define SA_CMDL_MAX_SIZE_BYTES (SA_CMDL_HEADER_SIZE_BYTES + \ SA_CMDL_OPTION_BYTES_MAX_SIZE) /* SWINFO word-0 flags */ #define SA_SW_INFO_FLAG_EVICT 0x0001 #define SA_SW_INFO_FLAG_TEAR 0x0002 #define SA_SW_INFO_FLAG_NOPD 0x0004 /* * This type represents the various packet types to be processed * by the PHP engine in SA. * It is used to identify the corresponding PHP processing function. */ #define SA_CTX_PE_PKT_TYPE_3GPP_AIR 0 /* 3GPP Air Cipher */ #define SA_CTX_PE_PKT_TYPE_SRTP 1 /* SRTP */ #define SA_CTX_PE_PKT_TYPE_IPSEC_AH 2 /* IPSec Authentication Header */ /* IPSec Encapsulating Security Payload */ #define SA_CTX_PE_PKT_TYPE_IPSEC_ESP 3 /* Indicates that it is in data mode, It may not be used by PHP */ #define SA_CTX_PE_PKT_TYPE_NONE 4 #define SA_CTX_ENC_TYPE1_SZ 64 /* Encryption SC with Key only */ #define SA_CTX_ENC_TYPE2_SZ 96 /* Encryption SC with Key and Aux1 */ #define SA_CTX_AUTH_TYPE1_SZ 64 /* Auth SC with Key only */ #define SA_CTX_AUTH_TYPE2_SZ 96 /* Auth SC with Key and Aux1 */ /* Size of security context for PHP engine */ #define SA_CTX_PHP_PE_CTX_SZ 64 #define SA_CTX_MAX_SZ (64 + SA_CTX_ENC_TYPE2_SZ + SA_CTX_AUTH_TYPE2_SZ) /* * Encoding of F/E control in SCCTL * Bit 0-1: Fetch PHP Bytes * Bit 2-3: Fetch Encryption/Air Ciphering Bytes * Bit 4-5: Fetch Authentication Bytes or Encr pass 2 * Bit 6-7: Evict PHP Bytes * * where 00 = 0 bytes * 01 = 64 bytes * 10 = 96 bytes * 11 = 128 bytes */ #define SA_CTX_DMA_SIZE_0 0 #define SA_CTX_DMA_SIZE_64 1 #define SA_CTX_DMA_SIZE_96 2 #define SA_CTX_DMA_SIZE_128 3 /* * Byte offset of the owner word in SCCTL * in the security context */ #define SA_CTX_SCCTL_OWNER_OFFSET 0 #define SA_CTX_ENC_KEY_OFFSET 32 #define SA_CTX_ENC_AUX1_OFFSET 64 #define SA_CTX_ENC_AUX2_OFFSET 96 #define SA_CTX_ENC_AUX3_OFFSET 112 #define SA_CTX_ENC_AUX4_OFFSET 128 #define SA_SCCTL_FE_AUTH_ENC 0x65 #define SA_SCCTL_FE_ENC 0x8D #define SA_ALIGN_MASK (sizeof(u32) - 1) #define SA_ALIGNED __aligned(32) #define SA_AUTH_SW_CTRL_MD5 1 #define SA_AUTH_SW_CTRL_SHA1 2 #define SA_AUTH_SW_CTRL_SHA224 3 #define SA_AUTH_SW_CTRL_SHA256 4 #define SA_AUTH_SW_CTRL_SHA384 5 #define SA_AUTH_SW_CTRL_SHA512 6 /* SA2UL can only handle maximum data size of 64KB */ #define SA_MAX_DATA_SZ U16_MAX /* * SA2UL can provide unpredictable results with packet sizes that fall * the following range, so avoid using it. */ #define SA_UNSAFE_DATA_SZ_MIN 240 #define SA_UNSAFE_DATA_SZ_MAX 256 struct sa_match_data; /** * struct sa_crypto_data - Crypto driver instance data * @base: Base address of the register space * @soc_data: Pointer to SoC specific data * @pdev: Platform device pointer * @sc_pool: security context pool * @dev: Device pointer * @scid_lock: secure context ID lock * @sc_id_start: starting index for SC ID * @sc_id_end: Ending index for SC ID * @sc_id: Security Context ID * @ctx_bm: Bitmap to keep track of Security context ID's * @ctx: SA tfm context pointer * @dma_rx1: Pointer to DMA rx channel for sizes < 256 Bytes * @dma_rx2: Pointer to DMA rx channel for sizes > 256 Bytes * @dma_tx: Pointer to DMA TX channel */ struct sa_crypto_data { void __iomem *base; const struct sa_match_data *match_data; struct platform_device *pdev; struct dma_pool *sc_pool; struct device *dev; spinlock_t scid_lock; /* lock for SC-ID allocation */ /* Security context data */ u16 sc_id_start; u16 sc_id_end; u16 sc_id; unsigned long ctx_bm[DIV_ROUND_UP(SA_MAX_NUM_CTX, BITS_PER_LONG)]; struct sa_tfm_ctx *ctx; struct dma_chan *dma_rx1; struct dma_chan *dma_rx2; struct dma_chan *dma_tx; }; /** * struct sa_cmdl_param_info: Command label parameters info * @index: Index of the parameter in the command label format * @offset: the offset of the parameter * @size: Size of the parameter */ struct sa_cmdl_param_info { u16 index; u16 offset; u16 size; }; /* Maximum length of Auxiliary data in 32bit words */ #define SA_MAX_AUX_DATA_WORDS 8 /** * struct sa_cmdl_upd_info: Command label updation info * @flags: flags in command label * @submode: Encryption submodes * @enc_size: Size of first pass encryption size * @enc_size2: Size of second pass encryption size * @enc_offset: Encryption payload offset in the packet * @enc_iv: Encryption initialization vector for pass2 * @enc_iv2: Encryption initialization vector for pass2 * @aad: Associated data * @payload: Payload info * @auth_size: Authentication size for pass 1 * @auth_size2: Authentication size for pass 2 * @auth_offset: Authentication payload offset * @auth_iv: Authentication initialization vector * @aux_key_info: Authentication aux key information * @aux_key: Aux key for authentication */ struct sa_cmdl_upd_info { u16 flags; u16 submode; struct sa_cmdl_param_info enc_size; struct sa_cmdl_param_info enc_size2; struct sa_cmdl_param_info enc_offset; struct sa_cmdl_param_info enc_iv; struct sa_cmdl_param_info enc_iv2; struct sa_cmdl_param_info aad; struct sa_cmdl_param_info payload; struct sa_cmdl_param_info auth_size; struct sa_cmdl_param_info auth_size2; struct sa_cmdl_param_info auth_offset; struct sa_cmdl_param_info auth_iv; struct sa_cmdl_param_info aux_key_info; u32 aux_key[SA_MAX_AUX_DATA_WORDS]; }; /* * Number of 32bit words appended after the command label * in PSDATA to identify the crypto request context. * word-0: Request type * word-1: pointer to request */ #define SA_PSDATA_CTX_WORDS 4 /* Maximum size of Command label in 32 words */ #define SA_MAX_CMDL_WORDS (SA_DMA_NUM_PS_WORDS - SA_PSDATA_CTX_WORDS) /** * struct sa_ctx_info: SA context information * @sc: Pointer to security context * @sc_phys: Security context physical address that is passed on to SA2UL * @sc_id: Security context ID * @cmdl_size: Command label size * @cmdl: Command label for a particular iteration * @cmdl_upd_info: structure holding command label updation info * @epib: Extended protocol information block words */ struct sa_ctx_info { u8 *sc; dma_addr_t sc_phys; u16 sc_id; u16 cmdl_size; u32 cmdl[SA_MAX_CMDL_WORDS]; struct sa_cmdl_upd_info cmdl_upd_info; /* Store Auxiliary data such as K2/K3 subkeys in AES-XCBC */ u32 epib[SA_DMA_NUM_EPIB_WORDS]; }; /** * struct sa_tfm_ctx: TFM context structure * @dev_data: struct sa_crypto_data pointer * @enc: struct sa_ctx_info for encryption * @dec: struct sa_ctx_info for decryption * @keylen: encrption/decryption keylength * @iv_idx: Initialization vector index * @key: encryption key * @fallback: SW fallback algorithm */ struct sa_tfm_ctx { struct sa_crypto_data *dev_data; struct sa_ctx_info enc; struct sa_ctx_info dec; struct sa_ctx_info auth; int keylen; int iv_idx; u32 key[AES_KEYSIZE_256 / sizeof(u32)]; u8 authkey[SHA512_BLOCK_SIZE]; struct crypto_shash *shash; /* for fallback */ union { struct crypto_skcipher *skcipher; struct crypto_ahash *ahash; struct crypto_aead *aead; } fallback; }; /** * struct sa_sha_req_ctx: Structure used for sha request * @dev_data: struct sa_crypto_data pointer * @cmdl: Complete command label with psdata and epib included * @fallback_req: SW fallback request container */ struct sa_sha_req_ctx { struct sa_crypto_data *dev_data; u32 cmdl[SA_MAX_CMDL_WORDS + SA_PSDATA_CTX_WORDS]; struct ahash_request fallback_req; }; enum sa_submode { SA_MODE_GEN = 0, SA_MODE_CCM, SA_MODE_GCM, SA_MODE_GMAC }; /* Encryption algorithms */ enum sa_ealg_id { SA_EALG_ID_NONE = 0, /* No encryption */ SA_EALG_ID_NULL, /* NULL encryption */ SA_EALG_ID_AES_CTR, /* AES Counter mode */ SA_EALG_ID_AES_F8, /* AES F8 mode */ SA_EALG_ID_AES_CBC, /* AES CBC mode */ SA_EALG_ID_DES_CBC, /* DES CBC mode */ SA_EALG_ID_3DES_CBC, /* 3DES CBC mode */ SA_EALG_ID_CCM, /* Counter with CBC-MAC mode */ SA_EALG_ID_GCM, /* Galois Counter mode */ SA_EALG_ID_AES_ECB, SA_EALG_ID_LAST }; /* Authentication algorithms */ enum sa_aalg_id { SA_AALG_ID_NONE = 0, /* No Authentication */ SA_AALG_ID_NULL = SA_EALG_ID_LAST, /* NULL Authentication */ SA_AALG_ID_MD5, /* MD5 mode */ SA_AALG_ID_SHA1, /* SHA1 mode */ SA_AALG_ID_SHA2_224, /* 224-bit SHA2 mode */ SA_AALG_ID_SHA2_256, /* 256-bit SHA2 mode */ SA_AALG_ID_SHA2_512, /* 512-bit SHA2 mode */ SA_AALG_ID_HMAC_MD5, /* HMAC with MD5 mode */ SA_AALG_ID_HMAC_SHA1, /* HMAC with SHA1 mode */ SA_AALG_ID_HMAC_SHA2_224, /* HMAC with 224-bit SHA2 mode */ SA_AALG_ID_HMAC_SHA2_256, /* HMAC with 256-bit SHA2 mode */ SA_AALG_ID_GMAC, /* Galois Message Auth. Code mode */ SA_AALG_ID_CMAC, /* Cipher-based Mes. Auth. Code mode */ SA_AALG_ID_CBC_MAC, /* Cipher Block Chaining */ SA_AALG_ID_AES_XCBC /* AES Extended Cipher Block Chaining */ }; /* * Mode control engine algorithms used to index the * mode control instruction tables */ enum sa_eng_algo_id { SA_ENG_ALGO_ECB = 0, SA_ENG_ALGO_CBC, SA_ENG_ALGO_CFB, SA_ENG_ALGO_OFB, SA_ENG_ALGO_CTR, SA_ENG_ALGO_F8, SA_ENG_ALGO_F8F9, SA_ENG_ALGO_GCM, SA_ENG_ALGO_GMAC, SA_ENG_ALGO_CCM, SA_ENG_ALGO_CMAC, SA_ENG_ALGO_CBCMAC, SA_NUM_ENG_ALGOS }; /** * struct sa_eng_info: Security accelerator engine info * @eng_id: Engine ID * @sc_size: security context size */ struct sa_eng_info { u8 eng_id; u16 sc_size; }; #endif /* _K3_SA2UL_ */
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