drivers/crypto/nitrox/nitrox_sym.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #include <stdbool.h>
   6
   7 #include <rte_cryptodev_pmd.h>
   8 #include <rte_crypto.h>
   9
  10 #include "nitrox_sym.h"
  11 #include "nitrox_device.h"
  12 #include "nitrox_logs.h"
  13
  14 #define CRYPTODEV_NAME_NITROX_PMD crypto_nitrox_sym
  15
  16 struct nitrox_sym_device {
  17         struct rte_cryptodev *cdev;
  18         struct nitrox_device *ndev;
  19 };
  20
  21 uint8_t nitrox_sym_drv_id;
  22 static const char nitrox_sym_drv_name[] = RTE_STR(CRYPTODEV_NAME_NITROX_PMD);
  23 static const struct rte_driver nitrox_rte_sym_drv = {
  24         .name = nitrox_sym_drv_name,
  25         .alias = nitrox_sym_drv_name
  26 };
  27
  28 static int nitrox_sym_dev_qp_release(struct rte_cryptodev *cdev,
  29                                      uint16_t qp_id);
  30
  31 static int
  32 nitrox_sym_dev_config(struct rte_cryptodev *cdev,
  33                       struct rte_cryptodev_config *config)
  34 {
  35         struct nitrox_sym_device *sym_dev = cdev->data->dev_private;
  36         struct nitrox_device *ndev = sym_dev->ndev;
  37
  38         if (config->nb_queue_pairs > ndev->nr_queues) {
  39                 NITROX_LOG(ERR, "Invalid queue pairs, max supported %d\n",
  40                            ndev->nr_queues);
  41                 return -EINVAL;
  42         }
  43
  44         return 0;
  45 }
  46
  47 static int
  48 nitrox_sym_dev_start(struct rte_cryptodev *cdev)
  49 {
  50         /* SE cores initialization is done in PF */
  51         RTE_SET_USED(cdev);
  52         return 0;
  53 }
  54
  55 static void
  56 nitrox_sym_dev_stop(struct rte_cryptodev *cdev)
  57 {
  58         /* SE cores cleanup is done in PF */
  59         RTE_SET_USED(cdev);
  60 }
  61
  62 static int
  63 nitrox_sym_dev_close(struct rte_cryptodev *cdev)
  64 {
  65         int i, ret;
  66
  67         for (i = 0; i < cdev->data->nb_queue_pairs; i++) {
  68                 ret = nitrox_sym_dev_qp_release(cdev, i);
  69                 if (ret)
  70                         return ret;
  71         }
  72
  73         return 0;
  74 }
  75
  76 static void
  77 nitrox_sym_dev_info_get(struct rte_cryptodev *cdev,
  78                         struct rte_cryptodev_info *info)
  79 {
  80         struct nitrox_sym_device *sym_dev = cdev->data->dev_private;
  81         struct nitrox_device *ndev = sym_dev->ndev;
  82
  83         if (!info)
  84                 return;
  85
  86         info->max_nb_queue_pairs = ndev->nr_queues;
  87         info->feature_flags = cdev->feature_flags;
  88         info->driver_id = nitrox_sym_drv_id;
  89         info->sym.max_nb_sessions = 0;
  90 }
  91
  92 static int
  93 nitrox_sym_dev_qp_release(struct rte_cryptodev *cdev, uint16_t qp_id)
  94 {
  95         RTE_SET_USED(cdev);
  96         RTE_SET_USED(qp_id);
  97         return 0;
  98 }
  99
 100 static struct rte_cryptodev_ops nitrox_cryptodev_ops = {
 101         .dev_configure          = nitrox_sym_dev_config,
 102         .dev_start              = nitrox_sym_dev_start,
 103         .dev_stop               = nitrox_sym_dev_stop,
 104         .dev_close              = nitrox_sym_dev_close,
 105         .dev_infos_get          = nitrox_sym_dev_info_get,
 106         .stats_get              = NULL,
 107         .stats_reset            = NULL,
 108         .queue_pair_setup       = NULL,
 109         .queue_pair_release     = NULL,
 110         .sym_session_get_size   = NULL,
 111         .sym_session_configure  = NULL,
 112         .sym_session_clear      = NULL
 113 };
 114
 115 int
 116 nitrox_sym_pmd_create(struct nitrox_device *ndev)
 117 {
 118         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
 119         struct rte_cryptodev_pmd_init_params init_params = {
 120                         .name = "",
 121                         .socket_id = ndev->pdev->device.numa_node,
 122                         .private_data_size = sizeof(struct nitrox_sym_device)
 123         };
 124         struct rte_cryptodev *cdev;
 125
 126         rte_pci_device_name(&ndev->pdev->addr, name, sizeof(name));
 127         snprintf(name + strlen(name), RTE_CRYPTODEV_NAME_MAX_LEN, "_n5sym");
 128         ndev->rte_sym_dev.driver = &nitrox_rte_sym_drv;
 129         ndev->rte_sym_dev.numa_node = ndev->pdev->device.numa_node;
 130         ndev->rte_sym_dev.devargs = NULL;
 131         cdev = rte_cryptodev_pmd_create(name, &ndev->rte_sym_dev,
 132                                         &init_params);
 133         if (!cdev) {
 134                 NITROX_LOG(ERR, "Cryptodev '%s' creation failed\n", name);
 135                 return -ENODEV;
 136         }
 137
 138         ndev->rte_sym_dev.name = cdev->data->name;
 139         cdev->driver_id = nitrox_sym_drv_id;
 140         cdev->dev_ops = &nitrox_cryptodev_ops;
 141         cdev->enqueue_burst = NULL;
 142         cdev->dequeue_burst = NULL;
 143         cdev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 144                 RTE_CRYPTODEV_FF_HW_ACCELERATED;
 145
 146         ndev->sym_dev = cdev->data->dev_private;
 147         ndev->sym_dev->cdev = cdev;
 148         ndev->sym_dev->ndev = ndev;
 149         NITROX_LOG(DEBUG, "Created cryptodev '%s', dev_id %d, drv_id %d\n",
 150                    cdev->data->name, cdev->data->dev_id, nitrox_sym_drv_id);
 151         return 0;
 152 }
 153
 154 int
 155 nitrox_sym_pmd_destroy(struct nitrox_device *ndev)
 156 {
 157         return rte_cryptodev_pmd_destroy(ndev->sym_dev->cdev);
 158 }
 159
 160 static struct cryptodev_driver nitrox_crypto_drv;
 161 RTE_PMD_REGISTER_CRYPTO_DRIVER(nitrox_crypto_drv,
 162                 nitrox_rte_sym_drv,
 163                 nitrox_sym_drv_id);