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 #include <rte_cryptodev_pci.h>
  39
  40 #include "qat_crypto.h"
  41 #include "qat_logs.h"
  42
  43 uint8_t cryptodev_qat_driver_id;
  44
  45 static const struct rte_cryptodev_capabilities qat_gen1_capabilities[] = {
  46         QAT_BASE_GEN1_SYM_CAPABILITIES,
  47         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
  48 };
  49
  50 static const struct rte_cryptodev_capabilities qat_gen2_capabilities[] = {
  51         QAT_BASE_GEN1_SYM_CAPABILITIES,
  52         QAT_EXTRA_GEN2_SYM_CAPABILITIES,
  53         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
  54 };
  55
  56 static struct rte_cryptodev_ops crypto_qat_ops = {
  57
  58                 /* Device related operations */
  59                 .dev_configure          = qat_dev_config,
  60                 .dev_start              = qat_dev_start,
  61                 .dev_stop               = qat_dev_stop,
  62                 .dev_close              = qat_dev_close,
  63                 .dev_infos_get          = qat_dev_info_get,
  64
  65                 .stats_get              = qat_crypto_sym_stats_get,
  66                 .stats_reset            = qat_crypto_sym_stats_reset,
  67                 .queue_pair_setup       = qat_crypto_sym_qp_setup,
  68                 .queue_pair_release     = qat_crypto_sym_qp_release,
  69                 .queue_pair_start       = NULL,
  70                 .queue_pair_stop        = NULL,
  71                 .queue_pair_count       = NULL,
  72
  73                 /* Crypto related operations */
  74                 .session_get_size       = qat_crypto_sym_get_session_private_size,
  75                 .session_configure      = qat_crypto_sym_configure_session,
  76                 .session_clear          = qat_crypto_sym_clear_session
  77 };
  78
  79 /*
  80  * The set of PCI devices this driver supports
  81  */
  82
  83 static const struct rte_pci_id pci_id_qat_map[] = {
  84                 {
  85                         RTE_PCI_DEVICE(0x8086, 0x0443),
  86                 },
  87                 {
  88                         RTE_PCI_DEVICE(0x8086, 0x37c9),
  89                 },
  90                 {
  91                         RTE_PCI_DEVICE(0x8086, 0x19e3),
  92                 },
  93                 {
  94                         RTE_PCI_DEVICE(0x8086, 0x6f55),
  95                 },
  96                 {.device_id = 0},
  97 };
  98
  99 static int
 100 crypto_qat_dev_init(struct rte_cryptodev *cryptodev)
 101 {
 102         struct qat_pmd_private *internals;
 103
 104         PMD_INIT_FUNC_TRACE();
 105         PMD_DRV_LOG(DEBUG, "Found crypto device at %02x:%02x.%x",
 106                 RTE_DEV_TO_PCI(cryptodev->device)->addr.bus,
 107                 RTE_DEV_TO_PCI(cryptodev->device)->addr.devid,
 108                 RTE_DEV_TO_PCI(cryptodev->device)->addr.function);
 109
 110         cryptodev->driver_id = cryptodev_qat_driver_id;
 111         cryptodev->dev_ops = &crypto_qat_ops;
 112
 113         cryptodev->enqueue_burst = qat_pmd_enqueue_op_burst;
 114         cryptodev->dequeue_burst = qat_pmd_dequeue_op_burst;
 115
 116         cryptodev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 117                         RTE_CRYPTODEV_FF_HW_ACCELERATED |
 118                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 119                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
 120
 121         internals = cryptodev->data->dev_private;
 122         internals->max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS;
 123         switch (RTE_DEV_TO_PCI(cryptodev->device)->id.device_id) {
 124         case 0x0443:
 125                 internals->qat_dev_gen = QAT_GEN1;
 126                 internals->qat_dev_capabilities = qat_gen1_capabilities;
 127                 break;
 128         case 0x37c9:
 129         case 0x19e3:
 130         case 0x6f55:
 131                 internals->qat_dev_gen = QAT_GEN2;
 132                 internals->qat_dev_capabilities = qat_gen2_capabilities;
 133                 break;
 134         default:
 135                 PMD_DRV_LOG(ERR,
 136                         "Invalid dev_id, can't determine capabilities");
 137                 break;
 138         }
 139
 140         /*
 141          * For secondary processes, we don't initialise any further as primary
 142          * has already done this work. Only check we don't need a different
 143          * RX function
 144          */
 145         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 146                 PMD_DRV_LOG(DEBUG, "Device already initialised by primary process");
 147                 return 0;
 148         }
 149
 150         return 0;
 151 }
 152
 153 static int crypto_qat_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 154         struct rte_pci_device *pci_dev)
 155 {
 156         return rte_cryptodev_pci_generic_probe(pci_dev,
 157                 sizeof(struct qat_pmd_private), crypto_qat_dev_init);
 158 }
 159
 160 static int crypto_qat_pci_remove(struct rte_pci_device *pci_dev)
 161 {
 162         return rte_cryptodev_pci_generic_remove(pci_dev, NULL);
 163 }
 164
 165 static struct rte_pci_driver rte_qat_pmd = {
 166         .id_table = pci_id_qat_map,
 167         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 168         .probe = crypto_qat_pci_probe,
 169         .remove = crypto_qat_pci_remove
 170 };
 171
 172 RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_QAT_SYM_PMD, rte_qat_pmd);
 173 RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_QAT_SYM_PMD, pci_id_qat_map);
 174 RTE_PMD_REGISTER_CRYPTO_DRIVER(rte_qat_pmd, cryptodev_qat_driver_id);