ceph/src/dpdk/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 /*
  41  * This macro rounds up a number to a be a multiple of
  42  * the alignment when the alignment is a power of 2
  43  */
  44 #define ALIGN_POW2_ROUNDUP(num, align) \
  45         (((num) + (align) - 1) & ~((align) - 1))
  46
  47 /**
  48  * Structure associated with each queue.
  49  */
  50 struct qat_queue {
  51         char            memz_name[RTE_MEMZONE_NAMESIZE];
  52         void            *base_addr;             /* Base address */
  53         phys_addr_t     base_phys_addr;         /* Queue physical address */
  54         uint32_t        head;                   /* Shadow copy of the head */
  55         uint32_t        tail;                   /* Shadow copy of the tail */
  56         uint32_t        modulo;
  57         uint32_t        msg_size;
  58         uint16_t        max_inflights;
  59         uint32_t        queue_size;
  60         uint8_t         hw_bundle_number;
  61         uint8_t         hw_queue_number;
  62         /* HW queue aka ring offset on bundle */
  63 };
  64
  65 struct qat_qp {
  66         void                    *mmap_bar_addr;
  67         rte_atomic16_t          inflights16;
  68         struct  qat_queue       tx_q;
  69         struct  qat_queue       rx_q;
  70         struct  rte_cryptodev_stats stats;
  71 } __rte_cache_aligned;
  72
  73 /** private data structure for each QAT device */
  74 struct qat_pmd_private {
  75         char sess_mp_name[RTE_MEMPOOL_NAMESIZE];
  76         struct rte_mempool *sess_mp;
  77
  78         unsigned max_nb_queue_pairs;
  79         /**< Max number of queue pairs supported by device */
  80         unsigned max_nb_sessions;
  81         /**< Max number of sessions supported by device */
  82 };
  83
  84 int qat_dev_config(struct rte_cryptodev *dev);
  85 int qat_dev_start(struct rte_cryptodev *dev);
  86 void qat_dev_stop(struct rte_cryptodev *dev);
  87 int qat_dev_close(struct rte_cryptodev *dev);
  88 void qat_dev_info_get(struct rte_cryptodev *dev,
  89         struct rte_cryptodev_info *info);
  90
  91 void qat_crypto_sym_stats_get(struct rte_cryptodev *dev,
  92         struct rte_cryptodev_stats *stats);
  93 void qat_crypto_sym_stats_reset(struct rte_cryptodev *dev);
  94
  95 int qat_crypto_sym_qp_setup(struct rte_cryptodev *dev, uint16_t queue_pair_id,
  96         const struct rte_cryptodev_qp_conf *rx_conf, int socket_id);
  97 int qat_crypto_sym_qp_release(struct rte_cryptodev *dev,
  98         uint16_t queue_pair_id);
  99
 100 int
 101 qat_pmd_session_mempool_create(struct rte_cryptodev *dev,
 102         unsigned nb_objs, unsigned obj_cache_size, int socket_id);
 103
 104 extern unsigned
 105 qat_crypto_sym_get_session_private_size(struct rte_cryptodev *dev);
 106
 107 extern void
 108 qat_crypto_sym_session_init(struct rte_mempool *mempool, void *priv_sess);
 109
 110 extern void *
 111 qat_crypto_sym_configure_session(struct rte_cryptodev *dev,
 112                 struct rte_crypto_sym_xform *xform, void *session_private);
 113
 114 struct qat_session *
 115 qat_crypto_sym_configure_session_auth(struct rte_cryptodev *dev,
 116                                 struct rte_crypto_sym_xform *xform,
 117                                 struct qat_session *session_private);
 118
 119 void *
 120 qat_crypto_sym_configure_session_cipher(struct rte_cryptodev *dev,
 121                 struct rte_crypto_sym_xform *xform, void *session_private);
 122
 123
 124 extern void
 125 qat_crypto_sym_clear_session(struct rte_cryptodev *dev, void *session);
 126
 127
 128 extern uint16_t
 129 qat_pmd_enqueue_op_burst(void *qp, struct rte_crypto_op **ops,
 130                 uint16_t nb_ops);
 131
 132 extern uint16_t
 133 qat_pmd_dequeue_op_burst(void *qp, struct rte_crypto_op **ops,
 134                 uint16_t nb_ops);
 135
 136 #endif /* _QAT_CRYPTO_H_ */