drivers/crypto/qat/rte_qat_cryptodev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2015-2017 Intel Corporation
   3  */
   4
   5 #include <rte_bus_pci.h>
   6 #include <rte_common.h>
   7 #include <rte_dev.h>
   8 #include <rte_malloc.h>
   9 #include <rte_pci.h>
  10 #include <rte_cryptodev_pmd.h>
  11
  12 #include "qat_crypto.h"
  13 #include "qat_logs.h"
  14
  15 uint8_t cryptodev_qat_driver_id;
  16
  17 static const struct rte_cryptodev_capabilities qat_gen1_capabilities[] = {
  18         QAT_BASE_GEN1_SYM_CAPABILITIES,
  19         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
  20 };
  21
  22 static const struct rte_cryptodev_capabilities qat_gen2_capabilities[] = {
  23         QAT_BASE_GEN1_SYM_CAPABILITIES,
  24         QAT_EXTRA_GEN2_SYM_CAPABILITIES,
  25         RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
  26 };
  27
  28 static struct rte_cryptodev_ops crypto_qat_ops = {
  29
  30                 /* Device related operations */
  31                 .dev_configure          = qat_dev_config,
  32                 .dev_start              = qat_dev_start,
  33                 .dev_stop               = qat_dev_stop,
  34                 .dev_close              = qat_dev_close,
  35                 .dev_infos_get          = qat_dev_info_get,
  36
  37                 .stats_get              = qat_crypto_sym_stats_get,
  38                 .stats_reset            = qat_crypto_sym_stats_reset,
  39                 .queue_pair_setup       = qat_crypto_sym_qp_setup,
  40                 .queue_pair_release     = qat_crypto_sym_qp_release,
  41                 .queue_pair_start       = NULL,
  42                 .queue_pair_stop        = NULL,
  43                 .queue_pair_count       = NULL,
  44
  45                 /* Crypto related operations */
  46                 .session_get_size       = qat_crypto_sym_get_session_private_size,
  47                 .session_configure      = qat_crypto_sym_configure_session,
  48                 .session_clear          = qat_crypto_sym_clear_session
  49 };
  50
  51 /*
  52  * The set of PCI devices this driver supports
  53  */
  54
  55 static const struct rte_pci_id pci_id_qat_map[] = {
  56                 {
  57                         RTE_PCI_DEVICE(0x8086, 0x0443),
  58                 },
  59                 {
  60                         RTE_PCI_DEVICE(0x8086, 0x37c9),
  61                 },
  62                 {
  63                         RTE_PCI_DEVICE(0x8086, 0x19e3),
  64                 },
  65                 {
  66                         RTE_PCI_DEVICE(0x8086, 0x6f55),
  67                 },
  68                 {.device_id = 0},
  69 };
  70
  71 static int
  72 crypto_qat_create(const char *name, struct rte_pci_device *pci_dev,
  73                 struct rte_cryptodev_pmd_init_params *init_params)
  74 {
  75         struct rte_cryptodev *cryptodev;
  76         struct qat_pmd_private *internals;
  77
  78         PMD_INIT_FUNC_TRACE();
  79
  80         cryptodev = rte_cryptodev_pmd_create(name, &pci_dev->device,
  81                         init_params);
  82         if (cryptodev == NULL)
  83                 return -ENODEV;
  84
  85         cryptodev->driver_id = cryptodev_qat_driver_id;
  86         cryptodev->dev_ops = &crypto_qat_ops;
  87
  88         cryptodev->enqueue_burst = qat_pmd_enqueue_op_burst;
  89         cryptodev->dequeue_burst = qat_pmd_dequeue_op_burst;
  90
  91         cryptodev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
  92                         RTE_CRYPTODEV_FF_HW_ACCELERATED |
  93                         RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
  94                         RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER;
  95
  96         internals = cryptodev->data->dev_private;
  97         internals->max_nb_sessions = init_params->max_nb_sessions;
  98         switch (pci_dev->id.device_id) {
  99         case 0x0443:
 100                 internals->qat_dev_gen = QAT_GEN1;
 101                 internals->qat_dev_capabilities = qat_gen1_capabilities;
 102                 break;
 103         case 0x37c9:
 104         case 0x19e3:
 105         case 0x6f55:
 106                 internals->qat_dev_gen = QAT_GEN2;
 107                 internals->qat_dev_capabilities = qat_gen2_capabilities;
 108                 break;
 109         default:
 110                 PMD_DRV_LOG(ERR,
 111                         "Invalid dev_id, can't determine capabilities");
 112                 break;
 113         }
 114
 115         /*
 116          * For secondary processes, we don't initialise any further as primary
 117          * has already done this work. Only check we don't need a different
 118          * RX function
 119          */
 120         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 121                 PMD_DRV_LOG(DEBUG, "Device already initialised by primary process");
 122                 return 0;
 123         }
 124
 125         return 0;
 126 }
 127
 128 static int crypto_qat_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
 129                 struct rte_pci_device *pci_dev)
 130 {
 131         struct rte_cryptodev_pmd_init_params init_params = {
 132                 .name = "",
 133                 .socket_id = rte_socket_id(),
 134                 .private_data_size = sizeof(struct qat_pmd_private),
 135                 .max_nb_sessions = RTE_QAT_PMD_MAX_NB_SESSIONS
 136         };
 137         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
 138
 139         PMD_DRV_LOG(DEBUG, "Found QAT device at %02x:%02x.%x",
 140                         pci_dev->addr.bus,
 141                         pci_dev->addr.devid,
 142                         pci_dev->addr.function);
 143
 144         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
 145
 146         return crypto_qat_create(name, pci_dev, &init_params);
 147 }
 148
 149 static int crypto_qat_pci_remove(struct rte_pci_device *pci_dev)
 150 {
 151         struct rte_cryptodev *cryptodev;
 152         char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
 153
 154         if (pci_dev == NULL)
 155                 return -EINVAL;
 156
 157         rte_pci_device_name(&pci_dev->addr, cryptodev_name,
 158                         sizeof(cryptodev_name));
 159
 160         cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
 161         if (cryptodev == NULL)
 162                 return -ENODEV;
 163
 164         /* free crypto device */
 165         return rte_cryptodev_pmd_destroy(cryptodev);
 166 }
 167
 168 static struct rte_pci_driver rte_qat_pmd = {
 169         .id_table = pci_id_qat_map,
 170         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 171         .probe = crypto_qat_pci_probe,
 172         .remove = crypto_qat_pci_remove
 173 };
 174
 175 static struct cryptodev_driver qat_crypto_drv;
 176
 177 RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_QAT_SYM_PMD, rte_qat_pmd);
 178 RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_QAT_SYM_PMD, pci_id_qat_map);
 179 RTE_PMD_REGISTER_CRYPTO_DRIVER(qat_crypto_drv, rte_qat_pmd,
 180                 cryptodev_qat_driver_id);