drivers/dma/idxd/idxd_pci.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2021 Intel Corporation
   3  */
   4
   5 #include <rte_bus_pci.h>
   6
   7 #include "idxd_internal.h"
   8
   9 #define IDXD_VENDOR_ID          0x8086
  10 #define IDXD_DEVICE_ID_SPR      0x0B25
  11
  12 #define IDXD_PMD_DMADEV_NAME_PCI dmadev_idxd_pci
  13
  14 const struct rte_pci_id pci_id_idxd_map[] = {
  15         { RTE_PCI_DEVICE(IDXD_VENDOR_ID, IDXD_DEVICE_ID_SPR) },
  16         { .vendor_id = 0, /* sentinel */ },
  17 };
  18
  19 static int
  20 idxd_dmadev_probe_pci(struct rte_pci_driver *drv, struct rte_pci_device *dev)
  21 {
  22         int ret = 0;
  23         char name[PCI_PRI_STR_SIZE];
  24
  25         rte_pci_device_name(&dev->addr, name, sizeof(name));
  26         IDXD_PMD_INFO("Init %s on NUMA node %d", name, dev->device.numa_node);
  27         dev->device.driver = &drv->driver;
  28
  29         return ret;
  30 }
  31
  32 static int
  33 idxd_dmadev_remove_pci(struct rte_pci_device *dev)
  34 {
  35         char name[PCI_PRI_STR_SIZE];
  36
  37         rte_pci_device_name(&dev->addr, name, sizeof(name));
  38
  39         IDXD_PMD_INFO("Closing %s on NUMA node %d",
  40                         name, dev->device.numa_node);
  41
  42         return 0;
  43 }
  44
  45 struct rte_pci_driver idxd_pmd_drv_pci = {
  46         .id_table = pci_id_idxd_map,
  47         .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
  48         .probe = idxd_dmadev_probe_pci,
  49         .remove = idxd_dmadev_remove_pci,
  50 };
  51
  52 RTE_PMD_REGISTER_PCI(IDXD_PMD_DMADEV_NAME_PCI, idxd_pmd_drv_pci);
  53 RTE_PMD_REGISTER_PCI_TABLE(IDXD_PMD_DMADEV_NAME_PCI, pci_id_idxd_map);
  54 RTE_PMD_REGISTER_KMOD_DEP(IDXD_PMD_DMADEV_NAME_PCI, "vfio-pci");
  55 RTE_PMD_REGISTER_PARAM_STRING(dmadev_idxd_pci, "max_queues=0");