LXR dpdk/drivers/crypto/nitrox/nitrox

   1/* SPDX-License-Identifier: BSD-3-Clause
   2 * Copyright(C) 2019 Marvell International Ltd.
   3 */
   4
   5#include <rte_malloc.h>
   6
   7#include "nitrox_device.h"
   8#include "nitrox_hal.h"
   9#include "nitrox_sym.h"
  10
  11#define PCI_VENDOR_ID_CAVIUM    0x177d
  12#define NITROX_V_PCI_VF_DEV_ID  0x13
  13
  14TAILQ_HEAD(ndev_list, nitrox_device);
  15static struct ndev_list ndev_list = TAILQ_HEAD_INITIALIZER(ndev_list);
  16
  17static struct nitrox_device *
  18ndev_allocate(struct rte_pci_device *pdev)
  19{
  20        struct nitrox_device *ndev;
  21
  22        ndev = rte_zmalloc_socket("nitrox device", sizeof(*ndev),
  23                                   RTE_CACHE_LINE_SIZE,
  24                                   pdev->device.numa_node);
  25        if (!ndev)
  26                return NULL;
  27
  28        TAILQ_INSERT_TAIL(&ndev_list, ndev, next);
  29        return ndev;
  30}
  31
  32static void
  33ndev_init(struct nitrox_device *ndev, struct rte_pci_device *pdev)
  34{
  35        enum nitrox_vf_mode vf_mode;
  36
  37        ndev->pdev = pdev;
  38        ndev->bar_addr = pdev->mem_resource[0].addr;
  39        vf_mode = vf_get_vf_config_mode(ndev->bar_addr);
  40        ndev->nr_queues = vf_config_mode_to_nr_queues(vf_mode);
  41}
  42
  43static struct nitrox_device *
  44find_ndev(struct rte_pci_device *pdev)
  45{
  46        struct nitrox_device *ndev;
  47
  48        TAILQ_FOREACH(ndev, &ndev_list, next)
  49                if (ndev->pdev == pdev)
  50                        return ndev;
  51
  52        return NULL;
  53}
  54
  55static void
  56ndev_release(struct nitrox_device *ndev)
  57{
  58        if (!ndev)
  59                return;
  60
  61        TAILQ_REMOVE(&ndev_list, ndev, next);
  62        rte_free(ndev);
  63}
  64
  65static int
  66nitrox_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
  67                struct rte_pci_device *pdev)
  68{
  69        struct nitrox_device *ndev;
  70        int err;
  71
  72        /* Nitrox CSR space */
  73        if (!pdev->mem_resource[0].addr)
  74                return -EINVAL;
  75
  76        ndev = ndev_allocate(pdev);
  77        if (!ndev)
  78                return -ENOMEM;
  79
  80        ndev_init(ndev, pdev);
  81        err = nitrox_sym_pmd_create(ndev);
  82        if (err) {
  83                ndev_release(ndev);
  84                return err;
  85        }
  86
  87        return 0;
  88}
  89
  90static int
  91nitrox_pci_remove(struct rte_pci_device *pdev)
  92{
  93        struct nitrox_device *ndev;
  94        int err;
  95
  96        ndev = find_ndev(pdev);
  97        if (!ndev)
  98                return -ENODEV;
  99
 100        err = nitrox_sym_pmd_destroy(ndev);
 101        if (err)
 102                return err;
 103
 104        ndev_release(ndev);
 105        return 0;
 106}
 107
 108static struct rte_pci_id pci_id_nitrox_map[] = {
 109        {
 110                /* Nitrox 5 VF */
 111                RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, NITROX_V_PCI_VF_DEV_ID)
 112        },
 113        {.device_id = 0},
 114};
 115
 116static struct rte_pci_driver nitrox_pmd = {
 117        .id_table       = pci_id_nitrox_map,
 118        .drv_flags      = RTE_PCI_DRV_NEED_MAPPING,
 119        .probe          = nitrox_pci_probe,
 120        .remove         = nitrox_pci_remove,
 121};
 122
 123RTE_PMD_REGISTER_PCI(nitrox, nitrox_pmd);
 124RTE_PMD_REGISTER_PCI_TABLE(nitrox, pci_id_nitrox_map);
 125