/* 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 … #define SA_ENGINE_ENABLE_CONTROL … struct sa_tfm_ctx; /* * SA_ENGINE_ENABLE_CONTROL register bits */ #define SA_EEC_ENCSS_EN … #define SA_EEC_AUTHSS_EN … #define SA_EEC_TRNG_EN … #define SA_EEC_PKA_EN … #define SA_EEC_CTXCACH_EN … #define SA_EEC_CPPI_PORT_IN_EN … #define SA_EEC_CPPI_PORT_OUT_EN … /* * 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 … #define SA_REQ_SUBTYPE_DEC … #define SA_REQ_SUBTYPE_SHIFT … #define SA_REQ_SUBTYPE_MASK … /* Number of 32 bit words in EPIB */ #define SA_DMA_NUM_EPIB_WORDS … /* Number of 32 bit words in PS data */ #define SA_DMA_NUM_PS_WORDS … #define NKEY_SZ … #define MCI_SZ … /* * Maximum number of simultaeneous security contexts * supported by the driver */ #define SA_MAX_NUM_CTX … /* * Assumption: CTX size is multiple of 32 */ #define SA_CTX_SIZE_TO_DMA_SIZE(ctx_sz) … #define SA_CTX_ENC_KEY_OFFSET … #define SA_CTX_ENC_AUX1_OFFSET … #define SA_CTX_ENC_AUX2_OFFSET … #define SA_CTX_ENC_AUX3_OFFSET … #define SA_CTX_ENC_AUX4_OFFSET … /* Next Engine Select code in CP_ACE */ #define SA_ENG_ID_EM1 … #define SA_ENG_ID_EM2 … #define SA_ENG_ID_AM1 … #define SA_ENG_ID_AM2 … #define SA_ENG_ID_OUTPORT2 … /* * Command Label Definitions */ #define SA_CMDL_OFFSET_NESC … #define SA_CMDL_OFFSET_LABEL_LEN … /* 16-bit Length of Data to be processed */ #define SA_CMDL_OFFSET_DATA_LEN … #define SA_CMDL_OFFSET_DATA_OFFSET … #define SA_CMDL_OFFSET_OPTION_CTRL1 … #define SA_CMDL_OFFSET_OPTION_CTRL2 … #define SA_CMDL_OFFSET_OPTION_CTRL3 … #define SA_CMDL_OFFSET_OPTION_BYTE … #define SA_CMDL_HEADER_SIZE_BYTES … #define SA_CMDL_OPTION_BYTES_MAX_SIZE … #define SA_CMDL_MAX_SIZE_BYTES … /* SWINFO word-0 flags */ #define SA_SW_INFO_FLAG_EVICT … #define SA_SW_INFO_FLAG_TEAR … #define SA_SW_INFO_FLAG_NOPD … /* * 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 … #define SA_CTX_PE_PKT_TYPE_SRTP … #define SA_CTX_PE_PKT_TYPE_IPSEC_AH … /* IPSec Encapsulating Security Payload */ #define SA_CTX_PE_PKT_TYPE_IPSEC_ESP … /* Indicates that it is in data mode, It may not be used by PHP */ #define SA_CTX_PE_PKT_TYPE_NONE … #define SA_CTX_ENC_TYPE1_SZ … #define SA_CTX_ENC_TYPE2_SZ … #define SA_CTX_AUTH_TYPE1_SZ … #define SA_CTX_AUTH_TYPE2_SZ … /* Size of security context for PHP engine */ #define SA_CTX_PHP_PE_CTX_SZ … #define SA_CTX_MAX_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 … #define SA_CTX_DMA_SIZE_64 … #define SA_CTX_DMA_SIZE_96 … #define SA_CTX_DMA_SIZE_128 … /* * Byte offset of the owner word in SCCTL * in the security context */ #define SA_CTX_SCCTL_OWNER_OFFSET … #define SA_CTX_ENC_KEY_OFFSET … #define SA_CTX_ENC_AUX1_OFFSET … #define SA_CTX_ENC_AUX2_OFFSET … #define SA_CTX_ENC_AUX3_OFFSET … #define SA_CTX_ENC_AUX4_OFFSET … #define SA_SCCTL_FE_AUTH_ENC … #define SA_SCCTL_FE_ENC … #define SA_ALIGN_MASK … #define SA_ALIGNED … #define SA_AUTH_SW_CTRL_MD5 … #define SA_AUTH_SW_CTRL_SHA1 … #define SA_AUTH_SW_CTRL_SHA224 … #define SA_AUTH_SW_CTRL_SHA256 … #define SA_AUTH_SW_CTRL_SHA384 … #define SA_AUTH_SW_CTRL_SHA512 … /* SA2UL can only handle maximum data size of 64KB */ #define SA_MAX_DATA_SZ … /* * SA2UL can provide unpredictable results with packet sizes that fall * the following range, so avoid using it. */ #define SA_UNSAFE_DATA_SZ_MIN … #define SA_UNSAFE_DATA_SZ_MAX … 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 { … }; /** * 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 { … }; /* Maximum length of Auxiliary data in 32bit words */ #define SA_MAX_AUX_DATA_WORDS … /** * 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 { … }; /* * 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 … /* Maximum size of Command label in 32 words */ #define SA_MAX_CMDL_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 { … }; /** * 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_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 { … }; enum sa_submode { … }; /* Encryption algorithms */ enum sa_ealg_id { … }; /* Authentication algorithms */ enum sa_aalg_id { … }; /* * Mode control engine algorithms used to index the * mode control instruction tables */ enum sa_eng_algo_id { … }; /** * struct sa_eng_info: Security accelerator engine info * @eng_id: Engine ID * @sc_size: security context size */ struct sa_eng_info { … }; #endif /* _K3_SA2UL_ */
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