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_cryptodev_sec.h"
  21 #include "otx2_dev.h"
  22
  23 /* CPT common headers */
  24 #include "cpt_common.h"
  25 #include "cpt_pmd_logs.h"
  26
  27 uint8_t otx2_cryptodev_driver_id;
  28
  29 static struct rte_pci_id pci_id_cpt_table[] = {
  30         {
  31                 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM,
  32                                PCI_DEVID_OCTEONTX2_RVU_CPT_VF)
  33         },
  34         /* sentinel */
  35         {
  36                 .device_id = 0
  37         },
  38 };
  39
  40 static int
  41 otx2_cpt_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
  42                    struct rte_pci_device *pci_dev)
  43 {
  44         struct rte_cryptodev_pmd_init_params init_params = {
  45                 .name = "",
  46                 .socket_id = rte_socket_id(),
  47                 .private_data_size = sizeof(struct otx2_cpt_vf)
  48         };
  49         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
  50         struct rte_cryptodev *dev;
  51         struct otx2_dev *otx2_dev;
  52         struct otx2_cpt_vf *vf;
  53         uint16_t nb_queues;
  54         int ret;
  55
  56         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
  57
  58         dev = rte_cryptodev_pmd_create(name, &pci_dev->device, &init_params);
  59         if (dev == NULL) {
  60                 ret = -ENODEV;
  61                 goto exit;
  62         }
  63
  64         dev->dev_ops = &otx2_cpt_ops;
  65
  66         dev->driver_id = otx2_cryptodev_driver_id;
  67
  68         /* Get private data space allocated */
  69         vf = dev->data->dev_private;
  70
  71         otx2_dev = &vf->otx2_dev;
  72
  73         /* Initialize the base otx2_dev object */
  74         ret = otx2_dev_init(pci_dev, otx2_dev);
  75         if (ret) {
  76                 CPT_LOG_ERR("Could not initialize otx2_dev");
  77                 goto pmd_destroy;
  78         }
  79
  80         /* Get number of queues available on the device */
  81         ret = otx2_cpt_available_queues_get(dev, &nb_queues);
  82         if (ret) {
  83                 CPT_LOG_ERR("Could not determine the number of queues available");
  84                 goto otx2_dev_fini;
  85         }
  86
  87         /* Don't exceed the limits set per VF */
  88         nb_queues = RTE_MIN(nb_queues, OTX2_CPT_MAX_QUEUES_PER_VF);
  89
  90         if (nb_queues == 0) {
  91                 CPT_LOG_ERR("No free queues available on the device");
  92                 goto otx2_dev_fini;
  93         }
  94
  95         vf->max_queues = nb_queues;
  96
  97         CPT_LOG_INFO("Max queues supported by device: %d", vf->max_queues);
  98
  99         ret = otx2_cpt_hardware_caps_get(dev, vf->hw_caps);
 100         if (ret) {
 101                 CPT_LOG_ERR("Could not determine hardware capabilities");
 102                 goto otx2_dev_fini;
 103         }
 104
 105         otx2_crypto_capabilities_init(vf->hw_caps);
 106         otx2_crypto_sec_capabilities_init(vf->hw_caps);
 107
 108         /* Create security ctx */
 109         ret = otx2_crypto_sec_ctx_create(dev);
 110         if (ret)
 111                 goto otx2_dev_fini;
 112
 113         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
 114                              RTE_CRYPTODEV_FF_HW_ACCELERATED |
 115                              RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING |
 116                              RTE_CRYPTODEV_FF_IN_PLACE_SGL |
 117                              RTE_CRYPTODEV_FF_OOP_SGL_IN_LB_OUT |
 118                              RTE_CRYPTODEV_FF_OOP_SGL_IN_SGL_OUT |
 119                              RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO |
 120                              RTE_CRYPTODEV_FF_RSA_PRIV_OP_KEY_QT |
 121                              RTE_CRYPTODEV_FF_SYM_SESSIONLESS |
 122                              RTE_CRYPTODEV_FF_SECURITY;
 123
 124         return 0;
 125
 126 otx2_dev_fini:
 127         otx2_dev_fini(pci_dev, otx2_dev);
 128 pmd_destroy:
 129         rte_cryptodev_pmd_destroy(dev);
 130 exit:
 131         CPT_LOG_ERR("Could not create device (vendor_id: 0x%x device_id: 0x%x)",
 132                     pci_dev->id.vendor_id, pci_dev->id.device_id);
 133         return ret;
 134 }
 135
 136 static int
 137 otx2_cpt_pci_remove(struct rte_pci_device *pci_dev)
 138 {
 139         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
 140         struct rte_cryptodev *dev;
 141
 142         if (pci_dev == NULL)
 143                 return -EINVAL;
 144
 145         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
 146
 147         dev = rte_cryptodev_pmd_get_named_dev(name);
 148         if (dev == NULL)
 149                 return -ENODEV;
 150
 151         /* Destroy security ctx */
 152         otx2_crypto_sec_ctx_destroy(dev);
 153
 154         return rte_cryptodev_pmd_destroy(dev);
 155 }
 156
 157 static struct rte_pci_driver otx2_cryptodev_pmd = {
 158         .id_table = pci_id_cpt_table,
 159         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
 160         .probe = otx2_cpt_pci_probe,
 161         .remove = otx2_cpt_pci_remove,
 162 };
 163
 164 static struct cryptodev_driver otx2_cryptodev_drv;
 165
 166 RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_OCTEONTX2_PMD, otx2_cryptodev_pmd);
 167 RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_OCTEONTX2_PMD, pci_id_cpt_table);
 168 RTE_PMD_REGISTER_KMOD_DEP(CRYPTODEV_NAME_OCTEONTX2_PMD, "vfio-pci");
 169 RTE_PMD_REGISTER_CRYPTO_DRIVER(otx2_cryptodev_drv, otx2_cryptodev_pmd.driver,
 170                 otx2_cryptodev_driver_id);
 171 RTE_LOG_REGISTER(otx2_cpt_logtype, pmd.crypto.octeontx2, NOTICE);