drivers/crypto/qat/rte_qat_cryptodev.c

   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 #include <rte_common.h>
  35 #include <rte_dev.h>
  36 #include <rte_malloc.h>
  37 #include <rte_cryptodev_pmd.h>
  38
  39 #include "qat_crypto.h"
  40 #include "qat_logs.h"
  41
  42 static struct rte_cryptodev_ops crypto_qat_ops = {
  43
  44                 /* Device related operations */
  45                 .dev_configure          = qat_dev_config,
  46                 .dev_start              = qat_dev_start,
  47                 .dev_stop               = qat_dev_stop,
  48                 .dev_close              = qat_dev_close,
  49                 .dev_infos_get          = qat_dev_info_get,
  50
  51                 .stats_get              = qat_crypto_sym_stats_get,
  52                 .stats_reset            = qat_crypto_sym_stats_reset,
  53                 .queue_pair_setup       = qat_crypto_sym_qp_setup,
  54                 .queue_pair_release     = qat_crypto_sym_qp_release,
  55                 .queue_pair_start       = NULL,
  56                 .queue_pair_stop        = NULL,
  57                 .queue_pair_count       = NULL,
  58
  59                 /* Crypto related operations */
  60                 .session_get_size       = qat_crypto_sym_get_session_private_size,
  61                 .session_configure      = qat_crypto_sym_configure_session,
  62                 .session_initialize     = qat_crypto_sym_session_init,
  63                 .session_clear          = qat_crypto_sym_clear_session
  64 };
  65
  66 /*
  67  * The set of PCI devices this driver supports
  68  */
  69
  70 static struct rte_pci_id pci_id_qat_map[] = {
  71                 {
  72                         .vendor_id = 0x8086,
  73                         .device_id = 0x0443,
  74                         .subsystem_vendor_id = PCI_ANY_ID,
  75                         .subsystem_device_id = PCI_ANY_ID
  76                 },
  77                 {.device_id = 0},
  78 };
  79
  80 static int
  81 crypto_qat_dev_init(__attribute__((unused)) struct rte_cryptodev_driver *crypto_drv,
  82                         struct rte_cryptodev *cryptodev)
  83 {
  84         struct qat_pmd_private *internals;
  85
  86         PMD_INIT_FUNC_TRACE();
  87         PMD_DRV_LOG(DEBUG, "Found crypto device at %02x:%02x.%x",
  88                 cryptodev->pci_dev->addr.bus,
  89                 cryptodev->pci_dev->addr.devid,
  90                 cryptodev->pci_dev->addr.function);
  91
  92         cryptodev->dev_type = RTE_CRYPTODEV_QAT_SYM_PMD;
  93         cryptodev->dev_ops = &crypto_qat_ops;
  94
  95         cryptodev->enqueue_burst = qat_pmd_enqueue_op_burst;
  96         cryptodev->dequeue_burst = qat_pmd_dequeue_op_burst;
  97
  98         cryptodev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
  99                         RTE_CRYPTODEV_FF_HW_ACCELERATED |
 100                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING;
 101
 102         internals = cryptodev->data->dev_private;
 103         internals->max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS;
 104
 105         /*
 106          * For secondary processes, we don't initialise any further as primary
 107          * has already done this work. Only check we don't need a different
 108          * RX function
 109          */
 110         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 111                 PMD_DRV_LOG(DEBUG, "Device already initialised by primary process");
 112                 return 0;
 113         }
 114
 115         return 0;
 116 }
 117
 118 static struct rte_cryptodev_driver rte_qat_pmd = {
 119         {
 120                 .name = "rte_qat_pmd",
 121                 .id_table = pci_id_qat_map,
 122                 .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 123         },
 124         .cryptodev_init = crypto_qat_dev_init,
 125         .dev_private_size = sizeof(struct qat_pmd_private),
 126 };
 127
 128 static int
 129 rte_qat_pmd_init(const char *name __rte_unused, const char *params __rte_unused)
 130 {
 131         PMD_INIT_FUNC_TRACE();
 132         return rte_cryptodev_pmd_driver_register(&rte_qat_pmd, PMD_PDEV);
 133 }
 134
 135 static struct rte_driver pmd_qat_drv = {
 136         .type = PMD_PDEV,
 137         .init = rte_qat_pmd_init,
 138 };
 139
 140 PMD_REGISTER_DRIVER(pmd_qat_drv);