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