drivers/net/octeontx2/otx2_ethdev.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #include <rte_ethdev_pci.h>
   6 #include <rte_io.h>
   7 #include <rte_malloc.h>
   8
   9 #include "otx2_ethdev.h"
  10
  11 static int
  12 otx2_eth_dev_init(struct rte_eth_dev *eth_dev)
  13 {
  14         RTE_SET_USED(eth_dev);
  15
  16         return -ENODEV;
  17 }
  18
  19 static int
  20 otx2_eth_dev_uninit(struct rte_eth_dev *eth_dev, bool mbox_close)
  21 {
  22         RTE_SET_USED(eth_dev);
  23         RTE_SET_USED(mbox_close);
  24
  25         return -ENODEV;
  26 }
  27
  28 static int
  29 nix_remove(struct rte_pci_device *pci_dev)
  30 {
  31         struct rte_eth_dev *eth_dev;
  32         int rc;
  33
  34         eth_dev = rte_eth_dev_allocated(pci_dev->device.name);
  35         if (eth_dev) {
  36                 /* Cleanup eth dev */
  37                 rc = otx2_eth_dev_uninit(eth_dev, true);
  38                 if (rc)
  39                         return rc;
  40
  41                 rte_eth_dev_pci_release(eth_dev);
  42         }
  43
  44         /* Nothing to be done for secondary processes */
  45         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
  46                 return 0;
  47
  48         return 0;
  49 }
  50
  51 static int
  52 nix_probe(struct rte_pci_driver *pci_drv, struct rte_pci_device *pci_dev)
  53 {
  54         int rc;
  55
  56         RTE_SET_USED(pci_drv);
  57
  58         rc = rte_eth_dev_pci_generic_probe(pci_dev, sizeof(struct otx2_eth_dev),
  59                                            otx2_eth_dev_init);
  60
  61         /* On error on secondary, recheck if port exists in primary or
  62          * in mid of detach state.
  63          */
  64         if (rte_eal_process_type() != RTE_PROC_PRIMARY && rc)
  65                 if (!rte_eth_dev_allocated(pci_dev->device.name))
  66                         return 0;
  67         return rc;
  68 }
  69
  70 static const struct rte_pci_id pci_nix_map[] = {
  71         {
  72                 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_PF)
  73         },
  74         {
  75                 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM, PCI_DEVID_OCTEONTX2_RVU_VF)
  76         },
  77         {
  78                 RTE_PCI_DEVICE(PCI_VENDOR_ID_CAVIUM,
  79                                PCI_DEVID_OCTEONTX2_RVU_AF_VF)
  80         },
  81         {
  82                 .vendor_id = 0,
  83         },
  84 };
  85
  86 static struct rte_pci_driver pci_nix = {
  87         .id_table = pci_nix_map,
  88         .drv_flags = RTE_PCI_DRV_NEED_MAPPING | RTE_PCI_DRV_IOVA_AS_VA |
  89                         RTE_PCI_DRV_INTR_LSC,
  90         .probe = nix_probe,
  91         .remove = nix_remove,
  92 };
  93
  94 RTE_PMD_REGISTER_PCI(net_octeontx2, pci_nix);
  95 RTE_PMD_REGISTER_PCI_TABLE(net_octeontx2, pci_nix_map);
  96 RTE_PMD_REGISTER_KMOD_DEP(net_octeontx2, "vfio-pci");