drivers/crypto/cnxk/cn9k_cryptodev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   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_pci.h>
  12
  13 #include "cn9k_cryptodev.h"
  14 #include "cn9k_cryptodev_ops.h"
  15 #include "cnxk_cryptodev.h"
  16 #include "roc_api.h"
  17
  18 uint8_t cn9k_cryptodev_driver_id;
  19
  20 static struct rte_pci_id pci_id_cpt_table[] = {
  21         {
  22         },
  23         /* sentinel */
  24         {
  25                 .device_id = 0
  26         },
  27 };
  28
  29 static int
  30 cn9k_cpt_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
  31                    struct rte_pci_device *pci_dev)
  32 {
  33         struct rte_cryptodev_pmd_init_params init_params = {
  34                 .name = "",
  35                 .socket_id = rte_socket_id(),
  36                 .private_data_size = sizeof(struct cnxk_cpt_vf)
  37         };
  38         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
  39         struct rte_cryptodev *dev;
  40         struct roc_cpt *roc_cpt;
  41         struct cnxk_cpt_vf *vf;
  42         int rc;
  43
  44         rc = roc_plt_init();
  45         if (rc < 0) {
  46                 plt_err("Failed to initialize platform model");
  47                 return rc;
  48         }
  49
  50         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
  51
  52         dev = rte_cryptodev_pmd_create(name, &pci_dev->device, &init_params);
  53         if (dev == NULL) {
  54                 rc = -ENODEV;
  55                 goto exit;
  56         }
  57
  58         /* Get private data space allocated */
  59         vf = dev->data->dev_private;
  60
  61         roc_cpt = &vf->cpt;
  62
  63         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
  64                 roc_cpt->pci_dev = pci_dev;
  65                 rc = roc_cpt_dev_init(roc_cpt);
  66                 if (rc) {
  67                         plt_err("Failed to initialize roc cpt rc=%d", rc);
  68                         goto pmd_destroy;
  69                 }
  70
  71                 rc = cnxk_cpt_eng_grp_add(roc_cpt);
  72                 if (rc) {
  73                         plt_err("Failed to add engine group rc=%d", rc);
  74                         goto dev_fini;
  75                 }
  76         }
  77
  78         dev->dev_ops = &cn9k_cpt_ops;
  79         dev->driver_id = cn9k_cryptodev_driver_id;
  80
  81         dev->feature_flags = RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO |
  82                              RTE_CRYPTODEV_FF_HW_ACCELERATED |
  83                              RTE_CRYPTODEV_FF_SYM_SESSIONLESS;
  84
  85         cn9k_cpt_set_enqdeq_fns(dev);
  86
  87         return 0;
  88
  89 dev_fini:
  90         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
  91                 roc_cpt_dev_fini(roc_cpt);
  92 pmd_destroy:
  93         rte_cryptodev_pmd_destroy(dev);
  94 exit:
  95         plt_err("Could not create device (vendor_id: 0x%x device_id: 0x%x)",
  96                 pci_dev->id.vendor_id, pci_dev->id.device_id);
  97         return rc;
  98 }
  99
 100 static int
 101 cn9k_cpt_pci_remove(struct rte_pci_device *pci_dev)
 102 {
 103         char name[RTE_CRYPTODEV_NAME_MAX_LEN];
 104         struct rte_cryptodev *dev;
 105         struct cnxk_cpt_vf *vf;
 106         int ret;
 107
 108         if (pci_dev == NULL)
 109                 return -EINVAL;
 110
 111         rte_pci_device_name(&pci_dev->addr, name, sizeof(name));
 112
 113         dev = rte_cryptodev_pmd_get_named_dev(name);
 114         if (dev == NULL)
 115                 return -ENODEV;
 116
 117         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 118                 vf = dev->data->dev_private;
 119                 ret = roc_cpt_dev_fini(&vf->cpt);
 120                 if (ret)
 121                         return ret;
 122         }
 123
 124         return rte_cryptodev_pmd_destroy(dev);
 125 }
 126
 127 static struct rte_pci_driver cn9k_cryptodev_pmd = {
 128         .id_table = pci_id_cpt_table,
 129         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_NEED_IOVA_AS_VA,
 130         .probe = cn9k_cpt_pci_probe,
 131         .remove = cn9k_cpt_pci_remove,
 132 };
 133
 134 static struct cryptodev_driver cn9k_cryptodev_drv;
 135
 136 RTE_PMD_REGISTER_PCI(CRYPTODEV_NAME_CN9K_PMD, cn9k_cryptodev_pmd);
 137 RTE_PMD_REGISTER_PCI_TABLE(CRYPTODEV_NAME_CN9K_PMD, pci_id_cpt_table);
 138 RTE_PMD_REGISTER_KMOD_DEP(CRYPTODEV_NAME_CN9K_PMD, "vfio-pci");
 139 RTE_PMD_REGISTER_CRYPTO_DRIVER(cn9k_cryptodev_drv, cn9k_cryptodev_pmd.driver,
 140                                cn9k_cryptodev_driver_id);