drivers/crypto/octeontx/otx_cryptodev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Cavium, Inc
   3  */
   4
   5 #include <rte_bus_pci.h>
   6 #include <rte_common.h>
   7 #include <rte_cryptodev.h>
   8 #include <cryptodev_pmd.h>
   9 #include <rte_log.h>
  10 #include <rte_pci.h>
  11
  12 #include "otx_cryptodev.h"
  13 #include "otx_cryptodev_ops.h"
  14
  15 #include "cpt_pmd_logs.h"
  16
  17 /* Device ID */
  18 #define PCI_VENDOR_ID_CAVIUM            0x177d
  19 #define CPT_81XX_PCI_VF_DEVICE_ID       0xa041
  20
  21 uint8_t otx_cryptodev_driver_id;
  22
  23 static struct rte_pci_id pci_id_cpt_table[] = {
  24         {
  25                 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, CPT_81XX_PCI_VF_DEVICE_ID),
  26         },
  27         /* sentinel */
  28         {
  29                 .device_id = 0
  30         },
  31 };
  32
  33 static int
  34 otx_cpt_pci_probe(struct rte_pci_driver *pci_drv,
  35                         struct rte_pci_device *pci_dev)
  36 {
  37         struct rte_cryptodev *cryptodev;
  38         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
  39         int retval;
  40
  41         if (pci_drv == NULL)
  42                 return -ENODEV;
  43
  44         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
  45
  46         cryptodev = rte_cryptodev_pmd_allocate(name, rte_socket_id());
  47         if (cryptodev == NULL)
  48                 return -ENOMEM;
  49
  50         cryptodev->device = &pci_dev->device;
  51         cryptodev->device->driver = &pci_drv->driver;
  52         cryptodev->driver_id = otx_cryptodev_driver_id;
  53
  54         /* init user callbacks */
  55         TAILQ_INIT(&(cryptodev->link_intr_cbs));
  56
  57         /* Invoke PMD device initialization function */
  58         retval = otx_cpt_dev_create(cryptodev);
  59         if (retval == 0) {
  60                 rte_cryptodev_pmd_probing_finish(cryptodev);
  61                 return 0;
  62         }
  63
  64         CPT_LOG_ERR("[DRV %s]: Failed to create device "
  65                         "(vendor_id: 0x%x device_id: 0x%x",
  66                         pci_drv->driver.name,
  67                         (unsigned int) pci_dev->id.vendor_id,
  68                         (unsigned int) pci_dev->id.device_id);
  69
  70         cryptodev->attached = RTE_CRYPTODEV_DETACHED;
  71
  72         return -ENXIO;
  73 }
  74
  75 static int
  76 otx_cpt_pci_remove(struct rte_pci_device *pci_dev)
  77 {
  78         struct rte_cryptodev *cryptodev;
  79         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
  80         void *dev_priv;
  81
  82         if (pci_dev == NULL)
  83                 return -EINVAL;
  84
  85         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
  86
  87         cryptodev = rte_cryptodev_pmd_get_named_dev(name);
  88         if (cryptodev == NULL)
  89                 return -ENODEV;
  90
  91         if (pci_dev->driver == NULL)
  92                 return -ENODEV;
  93
  94         dev_priv = cryptodev->data->dev_private;
  95
  96         /* free crypto device */
  97         rte_cryptodev_pmd_release_device(cryptodev);
  98
  99         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
 100                 rte_free(dev_priv);
 101
 102         cryptodev->device->driver = NULL;
 103         cryptodev->device = NULL;
 104         cryptodev->data = NULL;
 105
 106         return 0;
 107 }
 108
 109 static struct rte_pci_driver otx_cryptodev_pmd = {
 110         .id_table = pci_id_cpt_table,
 111         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 112         .probe = otx_cpt_pci_probe,
 113         .remove = otx_cpt_pci_remove,
 114 };
 115
 116 static struct cryptodev_driver otx_cryptodev_drv;
 117
 118 RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_OCTEONTX_PMD, otx_cryptodev_pmd);
 119 RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_OCTEONTX_PMD, pci_id_cpt_table);
 120 RTE_PMD_REGISTER_KMOD_DEP(CRYPTODEV_NAME_OCTEONTX_PMD, "vfio-pci");
 121 RTE_PMD_REGISTER_CRYPTO_DRIVER(otx_cryptodev_drv, otx_cryptodev_pmd.driver,
 122                 otx_cryptodev_driver_id);
 123 RTE_LOG_REGISTER_DEFAULT(otx_cpt_logtype, NOTICE);