drivers/crypto/octeontx2/otx2_cryptodev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright (C) 2019 Marvell International Ltd.
   3  */
   4
   5 #include <rte_bus_pci.h>
   6 #include <rte_common.h>
   7 #include <rte_crypto.h>
   8 #include <rte_cryptodev.h>
   9 #include <rte_cryptodev_pmd.h>
  10 #include <rte_dev.h>
  11 #include <rte_errno.h>
  12 #include <rte_mempool.h>
  13 #include <rte_pci.h>
  14
  15 #include "otx2_common.h"
  16 #include "otx2_cryptodev.h"
  17 #include "otx2_cryptodev_capabilities.h"
  18 #include "otx2_cryptodev_mbox.h"
  19 #include "otx2_cryptodev_ops.h"
  20 #include "otx2_dev.h"
  21
  22 /* CPT common headers */
  23 #include "cpt_common.h"
  24 #include "cpt_pmd_logs.h"
  25
  26 uint8_t otx2_cryptodev_driver_id;
  27
  28 static struct rte_pci_id pci_id_cpt_table[] = {
  29         {
  30                 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM,
  31                                PCI_DEVID_OCTEONTX2_RVU_CPT_VF)
  32         },
  33         /* sentinel */
  34         {
  35                 .device_id = 0
  36         },
  37 };
  38
  39 static int
  40 otx2_cpt_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
  41                    struct rte_pci_device *pci_dev)
  42 {
  43         struct rte_cryptodev_pmd_init_params init_params = {
  44                 .name = "",
  45                 .socket_id = rte_socket_id(),
  46                 .private_data_size = sizeof(struct otx2_cpt_vf)
  47         };
  48         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
  49         struct rte_cryptodev *dev;
  50         struct otx2_dev *otx2_dev;
  51         struct otx2_cpt_vf *vf;
  52         uint16_t nb_queues;
  53         int ret;
  54
  55         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
  56
  57         dev = rte_cryptodev_pmd_create(name, &pci_dev->device, &init_params);
  58         if (dev == NULL) {
  59                 ret = -ENODEV;
  60                 goto exit;
  61         }
  62
  63         dev->dev_ops = &otx2_cpt_ops;
  64
  65         dev->driver_id = otx2_cryptodev_driver_id;
  66
  67         /* Get private data space allocated */
  68         vf = dev->data->dev_private;
  69
  70         otx2_dev = &vf->otx2_dev;
  71
  72         /* Initialize the base otx2_dev object */
  73         ret = otx2_dev_init(pci_dev, otx2_dev);
  74         if (ret) {
  75                 CPT_LOG_ERR("Could not initialize otx2_dev");
  76                 goto pmd_destroy;
  77         }
  78
  79         /* Get number of queues available on the device */
  80         ret = otx2_cpt_available_queues_get(dev, &nb_queues);
  81         if (ret) {
  82                 CPT_LOG_ERR("Could not determine the number of queues available");
  83                 goto otx2_dev_fini;
  84         }
  85
  86         /* Don't exceed the limits set per VF */
  87         nb_queues = RTE_MIN(nb_queues, OTX2_CPT_MAX_QUEUES_PER_VF);
  88
  89         if (nb_queues == 0) {
  90                 CPT_LOG_ERR("No free queues available on the device");
  91                 goto otx2_dev_fini;
  92         }
  93
  94         vf->max_queues = nb_queues;
  95
  96         CPT_LOG_INFO("Max queues supported by device: %d", vf->max_queues);
  97
  98         ret = otx2_cpt_hardware_caps_get(dev, vf->hw_caps);
  99         if (ret) {
 100                 CPT_LOG_ERR("Could not determine hardware capabilities");
 101                 goto otx2_dev_fini;
 102         }
 103
 104         otx2_crypto_capabilities_init(vf->hw_caps);
 105
 106         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 107                              RTE_CRYPTODEV_FF_HW_ACCELERATED |
 108                              RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 109                              RTE_CRYPTODEV_FF_IN_PLACE_SGL |
 110                              RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
 111                              RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
 112                              RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
 113                              RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT |
 114                              RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
 115
 116         return 0;
 117
 118 otx2_dev_fini:
 119         otx2_dev_fini(pci_dev, otx2_dev);
 120 pmd_destroy:
 121         rte_cryptodev_pmd_destroy(dev);
 122 exit:
 123         CPT_LOG_ERR("Could not create device (vendor_id: 0x%x device_id: 0x%x)",
 124                     pci_dev->id.vendor_id, pci_dev->id.device_id);
 125         return ret;
 126 }
 127
 128 static int
 129 otx2_cpt_pci_remove(struct rte_pci_device *pci_dev)
 130 {
 131         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
 132         struct rte_cryptodev *dev;
 133
 134         if (pci_dev == NULL)
 135                 return -EINVAL;
 136
 137         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
 138
 139         dev = rte_cryptodev_pmd_get_named_dev(name);
 140         if (dev == NULL)
 141                 return -ENODEV;
 142
 143         return rte_cryptodev_pmd_destroy(dev);
 144 }
 145
 146 static struct rte_pci_driver otx2_cryptodev_pmd = {
 147         .id_table = pci_id_cpt_table,
 148         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 149         .probe = otx2_cpt_pci_probe,
 150         .remove = otx2_cpt_pci_remove,
 151 };
 152
 153 static struct cryptodev_driver otx2_cryptodev_drv;
 154
 155 RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_OCTEONTX2_PMD, otx2_cryptodev_pmd);
 156 RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_OCTEONTX2_PMD, pci_id_cpt_table);
 157 RTE_PMD_REGISTER_KMOD_DEP(CRYPTODEV_NAME_OCTEONTX2_PMD, "vfio-pci");
 158 RTE_PMD_REGISTER_CRYPTO_DRIVER(otx2_cryptodev_drv, otx2_cryptodev_pmd.driver,
 159                 otx2_cryptodev_driver_id);
 160 RTE_LOG_REGISTER(otx2_cpt_logtype, pmd.crypto.octeontx2, NOTICE);