drivers/pci/pci-pf-stub.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* pci-pf-stub - simple stub driver for PCI SR-IOV PF device
   3  *
   4  * This driver is meant to act as a "whitelist" for devices that provde
   5  * SR-IOV functionality while at the same time not actually needing a
   6  * driver of their own.
   7  */
   8
   9 #include <linux/module.h>
  10 #include <linux/pci.h>
  11
  12 /**
  13  * pci_pf_stub_whitelist - White list of devices to bind pci-pf-stub onto
  14  *
  15  * This table provides the list of IDs this driver is supposed to bind
  16  * onto.  You could think of this as a list of "quirked" devices where we
  17  * are adding support for SR-IOV here since there are no other drivers
  18  * that they would be running under.
  19  */
  20 static const struct pci_device_id pci_pf_stub_whitelist[] = {
  21         { PCI_VDEVICE(AMAZON, 0x0053) },
  22         /* required last entry */
  23         { 0 }
  24 };
  25 MODULE_DEVICE_TABLE(pci, pci_pf_stub_whitelist);
  26
  27 static int pci_pf_stub_probe(struct pci_dev *dev,
  28                              const struct pci_device_id *id)
  29 {
  30         pci_info(dev, "claimed by pci-pf-stub\n");
  31         return 0;
  32 }
  33
  34 static struct pci_driver pf_stub_driver = {
  35         .name                   = "pci-pf-stub",
  36         .id_table               = pci_pf_stub_whitelist,
  37         .probe                  = pci_pf_stub_probe,
  38         .sriov_configure        = pci_sriov_configure_simple,
  39 };
  40
  41 static int __init pci_pf_stub_init(void)
  42 {
  43         return pci_register_driver(&pf_stub_driver);
  44 }
  45
  46 static void __exit pci_pf_stub_exit(void)
  47 {
  48         pci_unregister_driver(&pf_stub_driver);
  49 }
  50
  51 module_init(pci_pf_stub_init);
  52 module_exit(pci_pf_stub_exit);
  53
  54 MODULE_LICENSE("GPL");