ceph/src/dpdk/drivers/crypto/aesni_gcm/aesni_gcm_pmd_private.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2016 Intel Corporation. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Intel Corporation nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32
  33 #ifndef _RTE_AESNI_GCM_PMD_PRIVATE_H_
  34 #define _RTE_AESNI_GCM_PMD_PRIVATE_H_
  35
  36 #include "aesni_gcm_ops.h"
  37
  38 #define GCM_LOG_ERR(fmt, args...) \
  39         RTE_LOG(ERR, CRYPTODEV, "[%s] %s() line %u: " fmt "\n",  \
  40                         RTE_STR(CRYPTODEV_NAME_AESNI_GCM_PMD), \
  41                         __func__, __LINE__, ## args)
  42
  43 #ifdef RTE_LIBRTE_AESNI_MB_DEBUG
  44 #define GCM_LOG_INFO(fmt, args...) \
  45         RTE_LOG(INFO, CRYPTODEV, "[%s] %s() line %u: " fmt "\n", \
  46                         RTE_STR(CRYPTODEV_NAME_AESNI_GCM_PMD), \
  47                         __func__, __LINE__, ## args)
  48
  49 #define GCM_LOG_DBG(fmt, args...) \
  50         RTE_LOG(DEBUG, CRYPTODEV, "[%s] %s() line %u: " fmt "\n", \
  51                         RTE_STR(CRYPTODEV_NAME_AESNI_GCM_PMD), \
  52                         __func__, __LINE__, ## args)
  53 #else
  54 #define GCM_LOG_INFO(fmt, args...)
  55 #define GCM_LOG_DBG(fmt, args...)
  56 #endif
  57
  58
  59 /** private data structure for each virtual AESNI GCM device */
  60 struct aesni_gcm_private {
  61         enum aesni_gcm_vector_mode vector_mode;
  62         /**< Vector mode */
  63         unsigned max_nb_queue_pairs;
  64         /**< Max number of queue pairs supported by device */
  65         unsigned max_nb_sessions;
  66         /**< Max number of sessions supported by device */
  67 };
  68
  69 struct aesni_gcm_qp {
  70         uint16_t id;
  71         /**< Queue Pair Identifier */
  72         char name[RTE_CRYPTODEV_NAME_LEN];
  73         /**< Unique Queue Pair Name */
  74         const struct aesni_gcm_ops *ops;
  75         /**< Architecture dependent function pointer table of the gcm APIs */
  76         struct rte_ring *processed_pkts;
  77         /**< Ring for placing process packets */
  78         struct rte_mempool *sess_mp;
  79         /**< Session Mempool */
  80         struct rte_cryptodev_stats qp_stats;
  81         /**< Queue pair statistics */
  82 } __rte_cache_aligned;
  83
  84
  85 enum aesni_gcm_operation {
  86         AESNI_GCM_OP_AUTHENTICATED_ENCRYPTION,
  87         AESNI_GCM_OP_AUTHENTICATED_DECRYPTION
  88 };
  89
  90 /** AESNI GCM private session structure */
  91 struct aesni_gcm_session {
  92         enum aesni_gcm_operation op;
  93         /**< GCM operation type */
  94         struct gcm_data gdata __rte_cache_aligned;
  95         /**< GCM parameters */
  96 };
  97
  98
  99 /**
 100  * Setup GCM session parameters
 101  * @param       ops     gcm ops function pointer table
 102  * @param       sess    aesni gcm session structure
 103  * @param       xform   crypto transform chain
 104  *
 105  * @return
 106  * - On success returns 0
 107  * - On failure returns error code < 0
 108  */
 109 extern int
 110 aesni_gcm_set_session_parameters(const struct aesni_gcm_ops *ops,
 111                 struct aesni_gcm_session *sess,
 112                 const struct rte_crypto_sym_xform *xform);
 113
 114
 115 /**
 116  * Device specific operations function pointer structure */
 117 extern struct rte_cryptodev_ops *rte_aesni_gcm_pmd_ops;
 118
 119
 120 #endif /* _RTE_AESNI_GCM_PMD_PRIVATE_H_ */