drivers/crypto/ipsec_mb/pmd_chacha_poly_priv.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2021 Intel Corporation
   3  */
   4
   5 #ifndef _PMD_CHACHA_POLY_PRIV_H_
   6 #define _PMD_CHACHA_POLY_PRIV_H_
   7
   8 #include "ipsec_mb_private.h"
   9
  10 #define CHACHA20_POLY1305_IV_LENGTH 12
  11 #define CHACHA20_POLY1305_DIGEST_LENGTH 16
  12 #define CHACHA20_POLY1305_KEY_SIZE  32
  13
  14 static const
  15 struct rte_cryptodev_capabilities chacha20_poly1305_capabilities[] = {
  16         {/* CHACHA20-POLY1305 */
  17             .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
  18             {.sym = {
  19                         .xform_type = RTE_CRYPTO_SYM_XFORM_AEAD,
  20                     {.aead = {
  21                                 .algo = RTE_CRYPTO_AEAD_CHACHA20_POLY1305,
  22                                 .block_size = 64,
  23                                 .key_size = {
  24                                         .min = 32,
  25                                         .max = 32,
  26                                         .increment = 0},
  27                                 .digest_size = {
  28                                         .min = 16,
  29                                         .max = 16,
  30                                         .increment = 0},
  31                                 .aad_size = {
  32                                         .min = 0,
  33                                         .max = 240,
  34                                         .increment = 1},
  35                                 .iv_size = {
  36                                         .min = 12,
  37                                         .max = 12,
  38                                         .increment = 0},
  39                             },
  40                         }
  41                 },}
  42         },
  43         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
  44 };
  45
  46 uint8_t pmd_driver_id_chacha20_poly1305;
  47
  48 /** CHACHA20 POLY1305 private session structure */
  49 struct chacha20_poly1305_session {
  50         struct {
  51                 uint16_t length;
  52                 uint16_t offset;
  53         } iv;
  54         /**< IV parameters */
  55         uint16_t aad_length;
  56         /**< AAD length */
  57         uint16_t req_digest_length;
  58         /**< Requested digest length */
  59         uint16_t gen_digest_length;
  60         /**< Generated digest length */
  61         uint8_t key[CHACHA20_POLY1305_KEY_SIZE];
  62         enum ipsec_mb_operation op;
  63 } __rte_cache_aligned;
  64
  65 struct chacha20_poly1305_qp_data {
  66         struct chacha20_poly1305_context_data chacha20_poly1305_ctx_data;
  67         uint8_t temp_digest[CHACHA20_POLY1305_DIGEST_LENGTH];
  68         /**< Buffer used to store the digest generated
  69          * by the driver when verifying a digest provided
  70          * by the user (using authentication verify operation)
  71          */
  72 };
  73
  74 #endif /* _PMD_CHACHA_POLY_PRIV_H_ */