drivers/crypto/qat/qat_crypto.h

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33
  34 #ifndef _QAT_CRYPTO_H_
  35 #define _QAT_CRYPTO_H_
  36
  37 #include <rte_cryptodev_pmd.h>
  38 #include <rte_memzone.h>
  39
  40 #include "qat_crypto_capabilities.h"
  41
  42 #define CRYPTODEV_NAME_QAT_SYM_PMD      crypto_qat
  43 /**< Intel QAT Symmetric Crypto PMD device name */
  44
  45 /*
  46  * This macro rounds up a number to a be a multiple of
  47  * the alignment when the alignment is a power of 2
  48  */
  49 #define ALIGN_POW2_ROUNDUP(num, align) \
  50         (((num) + (align) - 1) & ~((align) - 1))
  51 #define QAT_64_BTYE_ALIGN_MASK (~0x3f)
  52
  53 /**
  54  * Structure associated with each queue.
  55  */
  56 struct qat_queue {
  57         char            memz_name[RTE_MEMZONE_NAMESIZE];
  58         void            *base_addr;             /* Base address */
  59         phys_addr_t     base_phys_addr;         /* Queue physical address */
  60         uint32_t        head;                   /* Shadow copy of the head */
  61         uint32_t        tail;                   /* Shadow copy of the tail */
  62         uint32_t        modulo;
  63         uint32_t        msg_size;
  64         uint16_t        max_inflights;
  65         uint32_t        queue_size;
  66         uint8_t         hw_bundle_number;
  67         uint8_t         hw_queue_number;
  68         /* HW queue aka ring offset on bundle */
  69 };
  70
  71 struct qat_qp {
  72         void                    *mmap_bar_addr;
  73         rte_atomic16_t          inflights16;
  74         struct  qat_queue       tx_q;
  75         struct  qat_queue       rx_q;
  76         struct  rte_cryptodev_stats stats;
  77         struct rte_mempool *op_cookie_pool;
  78         void **op_cookies;
  79         uint32_t nb_descriptors;
  80 } __rte_cache_aligned;
  81
  82 /** private data structure for each QAT device */
  83 struct qat_pmd_private {
  84         unsigned max_nb_queue_pairs;
  85         /**< Max number of queue pairs supported by device */
  86         unsigned max_nb_sessions;
  87         /**< Max number of sessions supported by device */
  88         const struct rte_cryptodev_capabilities *qat_dev_capabilities;
  89 };
  90
  91 extern uint8_t cryptodev_qat_driver_id;
  92
  93 int qat_dev_config(struct rte_cryptodev *dev,
  94                 struct rte_cryptodev_config *config);
  95 int qat_dev_start(struct rte_cryptodev *dev);
  96 void qat_dev_stop(struct rte_cryptodev *dev);
  97 int qat_dev_close(struct rte_cryptodev *dev);
  98 void qat_dev_info_get(struct rte_cryptodev *dev,
  99         struct rte_cryptodev_info *info);
 100
 101 void qat_crypto_sym_stats_get(struct rte_cryptodev *dev,
 102         struct rte_cryptodev_stats *stats);
 103 void qat_crypto_sym_stats_reset(struct rte_cryptodev *dev);
 104
 105 int qat_crypto_sym_qp_setup(struct rte_cryptodev *dev, uint16_t queue_pair_id,
 106         const struct rte_cryptodev_qp_conf *rx_conf, int socket_id,
 107         struct rte_mempool *session_pool);
 108 int qat_crypto_sym_qp_release(struct rte_cryptodev *dev,
 109         uint16_t queue_pair_id);
 110
 111 int
 112 qat_pmd_session_mempool_create(struct rte_cryptodev *dev,
 113         unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 114
 115 extern unsigned
 116 qat_crypto_sym_get_session_private_size(struct rte_cryptodev *dev);
 117
 118 extern int
 119 qat_crypto_sym_configure_session(struct rte_cryptodev *dev,
 120                 struct rte_crypto_sym_xform *xform,
 121                 struct rte_cryptodev_sym_session *sess,
 122                 struct rte_mempool *mempool);
 123
 124
 125 int
 126 qat_crypto_set_session_parameters(struct rte_cryptodev *dev,
 127                 struct rte_crypto_sym_xform *xform, void *session_private);
 128
 129 struct qat_session *
 130 qat_crypto_sym_configure_session_aead(struct rte_crypto_sym_xform *xform,
 131                                 struct qat_session *session_private);
 132
 133 struct qat_session *
 134 qat_crypto_sym_configure_session_auth(struct rte_cryptodev *dev,
 135                                 struct rte_crypto_sym_xform *xform,
 136                                 struct qat_session *session_private);
 137
 138 void *
 139 qat_crypto_sym_configure_session_cipher(struct rte_cryptodev *dev,
 140                 struct rte_crypto_sym_xform *xform, void *session_private);
 141
 142
 143 extern void
 144 qat_crypto_sym_clear_session(struct rte_cryptodev *dev,
 145                 struct rte_cryptodev_sym_session *session);
 146
 147 extern uint16_t
 148 qat_pmd_enqueue_op_burst(void *qp, struct rte_crypto_op **ops,
 149                 uint16_t nb_ops);
 150
 151 extern uint16_t
 152 qat_pmd_dequeue_op_burst(void *qp, struct rte_crypto_op **ops,
 153                 uint16_t nb_ops);
 154
 155 #endif /* _QAT_CRYPTO_H_ */