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7e0880b9fb
Offload split key generation in CAAM engine, using DKP. DKP is supported starting with Era 6. Note that the way assoclen is transmitted from the job descriptor to the shared descriptor changes - DPOVRD register is used instead of MATH3 (where available), since DKP protocol thrashes the MATH registers. The replacement of MDHA split key generation with DKP has the side effect of the crypto engine writing the authentication key, and thus the DMA mapping direction for the buffer holding the key has to change from DMA_TO_DEVICE to DMA_BIDIRECTIONAL. There are two cases: -key is inlined in descriptor - descriptor buffer mapping changes -key is referenced - key buffer mapping changes Signed-off-by: Horia Geantă <horia.geanta@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
103 lines
3.9 KiB
C
103 lines
3.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Shared descriptors for aead, ablkcipher algorithms
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*
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* Copyright 2016 NXP
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*/
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#ifndef _CAAMALG_DESC_H_
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#define _CAAMALG_DESC_H_
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/* length of descriptors text */
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#define DESC_AEAD_BASE (4 * CAAM_CMD_SZ)
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#define DESC_AEAD_ENC_LEN (DESC_AEAD_BASE + 11 * CAAM_CMD_SZ)
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#define DESC_AEAD_DEC_LEN (DESC_AEAD_BASE + 15 * CAAM_CMD_SZ)
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#define DESC_AEAD_GIVENC_LEN (DESC_AEAD_ENC_LEN + 7 * CAAM_CMD_SZ)
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#define DESC_QI_AEAD_ENC_LEN (DESC_AEAD_ENC_LEN + 3 * CAAM_CMD_SZ)
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#define DESC_QI_AEAD_DEC_LEN (DESC_AEAD_DEC_LEN + 3 * CAAM_CMD_SZ)
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#define DESC_QI_AEAD_GIVENC_LEN (DESC_AEAD_GIVENC_LEN + 3 * CAAM_CMD_SZ)
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/* Note: Nonce is counted in cdata.keylen */
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#define DESC_AEAD_CTR_RFC3686_LEN (4 * CAAM_CMD_SZ)
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#define DESC_AEAD_NULL_BASE (3 * CAAM_CMD_SZ)
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#define DESC_AEAD_NULL_ENC_LEN (DESC_AEAD_NULL_BASE + 11 * CAAM_CMD_SZ)
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#define DESC_AEAD_NULL_DEC_LEN (DESC_AEAD_NULL_BASE + 13 * CAAM_CMD_SZ)
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#define DESC_GCM_BASE (3 * CAAM_CMD_SZ)
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#define DESC_GCM_ENC_LEN (DESC_GCM_BASE + 16 * CAAM_CMD_SZ)
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#define DESC_GCM_DEC_LEN (DESC_GCM_BASE + 12 * CAAM_CMD_SZ)
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#define DESC_RFC4106_BASE (3 * CAAM_CMD_SZ)
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#define DESC_RFC4106_ENC_LEN (DESC_RFC4106_BASE + 13 * CAAM_CMD_SZ)
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#define DESC_RFC4106_DEC_LEN (DESC_RFC4106_BASE + 13 * CAAM_CMD_SZ)
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#define DESC_RFC4543_BASE (3 * CAAM_CMD_SZ)
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#define DESC_RFC4543_ENC_LEN (DESC_RFC4543_BASE + 11 * CAAM_CMD_SZ)
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#define DESC_RFC4543_DEC_LEN (DESC_RFC4543_BASE + 12 * CAAM_CMD_SZ)
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#define DESC_ABLKCIPHER_BASE (3 * CAAM_CMD_SZ)
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#define DESC_ABLKCIPHER_ENC_LEN (DESC_ABLKCIPHER_BASE + \
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20 * CAAM_CMD_SZ)
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#define DESC_ABLKCIPHER_DEC_LEN (DESC_ABLKCIPHER_BASE + \
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15 * CAAM_CMD_SZ)
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void cnstr_shdsc_aead_null_encap(u32 * const desc, struct alginfo *adata,
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unsigned int icvsize, int era);
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void cnstr_shdsc_aead_null_decap(u32 * const desc, struct alginfo *adata,
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unsigned int icvsize, int era);
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void cnstr_shdsc_aead_encap(u32 * const desc, struct alginfo *cdata,
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struct alginfo *adata, unsigned int ivsize,
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unsigned int icvsize, const bool is_rfc3686,
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u32 *nonce, const u32 ctx1_iv_off,
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const bool is_qi, int era);
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void cnstr_shdsc_aead_decap(u32 * const desc, struct alginfo *cdata,
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struct alginfo *adata, unsigned int ivsize,
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unsigned int icvsize, const bool geniv,
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const bool is_rfc3686, u32 *nonce,
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const u32 ctx1_iv_off, const bool is_qi, int era);
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void cnstr_shdsc_aead_givencap(u32 * const desc, struct alginfo *cdata,
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struct alginfo *adata, unsigned int ivsize,
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unsigned int icvsize, const bool is_rfc3686,
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u32 *nonce, const u32 ctx1_iv_off,
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const bool is_qi, int era);
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void cnstr_shdsc_gcm_encap(u32 * const desc, struct alginfo *cdata,
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unsigned int icvsize);
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void cnstr_shdsc_gcm_decap(u32 * const desc, struct alginfo *cdata,
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unsigned int icvsize);
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void cnstr_shdsc_rfc4106_encap(u32 * const desc, struct alginfo *cdata,
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unsigned int icvsize);
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void cnstr_shdsc_rfc4106_decap(u32 * const desc, struct alginfo *cdata,
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unsigned int icvsize);
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void cnstr_shdsc_rfc4543_encap(u32 * const desc, struct alginfo *cdata,
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unsigned int icvsize);
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void cnstr_shdsc_rfc4543_decap(u32 * const desc, struct alginfo *cdata,
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unsigned int icvsize);
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void cnstr_shdsc_ablkcipher_encap(u32 * const desc, struct alginfo *cdata,
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unsigned int ivsize, const bool is_rfc3686,
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const u32 ctx1_iv_off);
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void cnstr_shdsc_ablkcipher_decap(u32 * const desc, struct alginfo *cdata,
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unsigned int ivsize, const bool is_rfc3686,
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const u32 ctx1_iv_off);
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void cnstr_shdsc_ablkcipher_givencap(u32 * const desc, struct alginfo *cdata,
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unsigned int ivsize, const bool is_rfc3686,
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const u32 ctx1_iv_off);
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void cnstr_shdsc_xts_ablkcipher_encap(u32 * const desc, struct alginfo *cdata);
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void cnstr_shdsc_xts_ablkcipher_decap(u32 * const desc, struct alginfo *cdata);
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#endif /* _CAAMALG_DESC_H_ */
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